SMPPS is basically no variance, unless the pool experiences significant bad luck streaks without any good luck streaks to rebuild the buffer. I will set the initial buffer to 500 BTC. Details on the buffer will be visible on the stats page if this is the system we end up using.
What does that means?
The pool starts with 500BTC buffer (you are going to provide the BTC) OR the first 10 rounds don't get payed?
If you plan to provide 500BTC ... i would say it's a bad idea ... start the pool with 0 buffer and let the "fortune" to fill it.