Indeed you have to select "direct shipping" but also choose the UPS option afterwards (depending on your region other options will be available)
Only after this final step the site will calculate your exact shipping fee based on the total weight.

I also made mistake on one of my orders and left the low shipping fee. Basically it seems this also causes your order to become "Umisoo hosted".
Prior to shipping however Bitmain contacted me to double check. Good they did since I'm hosting my own little farm..

My S4 is not performing as expected. I only see 1800 - 1900 Gh/sec hourly ratings on Slush so far.
Have been checking the average for the last couple of days but can't see any improvement.

I tried minimum difficulty at 2048 and 2250. No real difference.

Anyone seeing similar behavior ?

The funny thing is that on the S4 internal stats page I currently see like an average mining speed of 2002.39 Gh/s over the last 3 days.

Slush:
xxxxxxxxx    x    0    355500    3139621.50955    0 minutes    1806.571    2250

versus

S4 internal stats:

Elapsed    GH/S(5s)    GH/S(avg)    FoundBlocks    Utility    LocalWork    WU    BestShare
                     
3d3h14m53s 2845.66      2001.94        0             11.84         158480049 27975.18    153414510

No more free shipping as it seems.
Of course Bitmain still purchases in USD so at some point there's no more margin for freebies.

Blockchain working normally for me.
Only the difficulty graph at https://bitcoinwisdom.com/bitcoin/difficulty is not being updated for the last couple of hours.

Same situation here.

Today repaired a miner that had a faulty blade and it's now mining OK according to the status page on the miner.
However Slush reports 0.0 Mh/s even after waiting 30 - 60 minutes. I would expect to see a slow increase in Mh/s during the first hour of mining.

Seems to be something wrong on Slush side. Just hope my shares won't be lost. It's about time this S3 is generating some revenues after arriving as DOA-unit.
[Great service from Bitmaintech to swap out the faulty board by UPS within a week]

BTW my other miners report the right stats on Slush only the re-attached S3 miner is showing 0.0.

EDIT: after regular checks it seems the Mhash/sec are currently not being updated on the website. My android app is showing that my miners are all working normally and with expected hashrates. Also payout seems consistent so no need to worry about that.

I've observed something similar with hashrates dropping to around 420 , however I also see hash rates of 460-470. Basically there's a 10% variance both + and -.
I now have 4 S3's and besides the faulty one now doing 229 the rest is up and running at 427 to 444.

I also have a dragon 1 Th/s miner and also this one shows a variance of up to 8% both up and down.
My observations after a week are that the hash rates somehow go up and down simultaniously. So if the Antminers are "slower' the Dragonminer seems to be slower as well.

Ah...Just received my reply from China on what to do.
Most of it already tried like trying another power supply but now will start to swap boards with other minders to see if it's the controller board or the blade.

How long did it take for them to reply ? I can imagine that even with the smallest failure rate they must be receiving numerous support requests after this huge rollout of S3 miners.

What's the experience with Bitmaintech RMA support so far ?

I received a S3 that's showing xxxxxx xxxxx000 for one of the blades after using it for about an hour.
No overclocking, tried 2 different power supplies, 2 power connectors, 4 power connectors...
Also tried to reconnect all internal wiring. Checked if the heatsink is tight, all to no avail....

Hashing power is around 220 Gh/s on average, obviously not what I want.

I tried to get a reply from Bitmain since last monday but no feedback at all on how they're going to fix this. I'm using their info@. email address.

Probably I need a new blade. Naturally I would really like to get to full hashing power asap to get some better ROI on my little antfarm, so if any of you have tips or tricks on what to try next....

Also if Bitmaintech is reading this thread (and they should be).. please try and get your RMA team to work overtime.. I know you guys must be crazy busy to move out thousands of miners but for continued business customer support is equally important as R&D and sales.

At a quick glance the last 10 blocks average is about 5 hours p/block. And that includes the 29 hour plus block.
So yes, it's all about the long run. An no, we can't predict how long the current or next block will take so pool hopping is useless IMO.

Slush says: "Estimated reward"... meaning it's an estimation only.. from what I can see based on the current hashrate of your miner(s)

You don't get the "Estimated reward" at the end of the block but in most cases something close to that.

After finishing a block, which can take over a day as we witnessed multiple times recently, you´ll see the status of the block change to processing. Only then every share you participated is calculated and the final payout determined.

I´m not sure of the exact calculation method for the estimated reward but it seems that it´s related mostly to your average hashrate. This explains why the estimation start to drop to zero after you switch pools or switch off your miners. However upon finalizing the block you´ll still get your rightful share...

BTW it´s  a know factor that payouts on Slush vary greatly, there´s simply not enough mining power (about 3 % of the total available) to sustain steady payouts.. so it all comes down to luck..

If you're looking for more steady payouts you should either opt for load balancing or entirely switch to a larger pool.