IDK, its almost to the point that any compensation just isn't worth it.  Sure it may pay out more bitcoin after many months, but you still have to be able to run them.  If someone purchased 10 X-1's back in 2013, they were expecting .55 watts or even .75 watts at the wall (as that is what is still advertised on their website) which would be between 550 and 750 watts, now, for those same 10 X-1's, we are looking at each one using 120 watts ish (I think that's what it was), which would be 1200 watts total.  Now if you start adding compensation on to that, and for the sake of argument they really under deliver on compensation and only give 2x the number ordered, now you have 30 X-1's and are using 3600 watts of power.  That is a much bigger cooling bill, and you have to find some place that you can spread 30 of these things out (since they do not stack and their is no immediate design/plan to stack them), while still being able to supply almost 4 kw of electricity to the space.  It just isn't practical unless you want to pay for hosting, which seriously diminishes returns and guarantees no success of a positive ROI.

I contacted customer support at minersource and received no response. When are you going to ship the compensation PSUs that I paid for over a month ago (May 14th)?

So it looks like X1 units need a non-standard power cord. Anyone find a good price for these in bulk? Maybe we can get a USA groupbuy going, I am looking for at least 10 mattering what the X3s use.

Edit: unless USA orders come with one.

Is it worth buying a bunch of these for $90 USD each?

I spoke with eleuthria and the local math wizard organofcorti and they both confirmed there is no easy way to precisely confirm the pool luck, which is a deal braker for me.
I guess it is just a psychological barrier for me to join a pool, where I cannot verify one of the main factors that determine how much I earn.