Inaba,
After a lot of pool testing, at the moment I'm looking at PPS or SMPPS.
I gave your pool again a chance (I mined with you previously, until your pool went down for a full night), because I really liked your site and style.
All people are screaming pool hopper, but you and me know that this is not the case. I might return in case you implement one of the two methods.
If you have 15Gh of miners then I'd suggest at least having one fail-over pool, most pools even the larger ones suffer from outages for various reasons from time to time. Having the much mining power relying on one pool doesn't seem like a good idea to me, with that much power I'd be running a mining proxy to help with logistics to point all your miners at it and let it deal with pool selection. Also if you're mining 24/7 you'll struggle to beat the scoring method used on eclipse unless you hop.
Just my 0.02bc, thanks for the extra bonus btw.