Slush's Pool: Question regarding "Mhash/s" indication on "My account" page

[ralfr]

I'm pretty new to Bitcoin mining and using three Satoshi Sticks (USB ASICs). cgminer indicates an average hash rate of 325 Mh/s per AMU. I've been connected to Slush's pool for a few hours, but on the "My accounts" page the "Mhash/s" stats say

285.69 Mh/s

with this number slowly increasing on page refreshes.

Questions:
- Why is this number significantly lower than 3 x 325 Mh/s?
- Will it keep increasing over time until it reaches the real rate, which cgminer indicates on my local machine?
- Why is this so?

Thanks for helping a Bitcoin mining newbie with this. :-)

--
Ralf | 1Bn35qkUS4X51hjszLzhVMHcmFb2GQXLEZ

[os2sam]

Both Slush's pool and CGMiner have their own threads for these types of questions.

[ralfr]

Can you point (link) me to the correct forum then?

[os2sam]

Can you point (link) me to the correct forum then?

https://bitcointalk.org/index.php?topic=1976.msg24844#msg24844

https://bitcointalk.org/index.php?topic=28402.msg357369#msg357369