I wouldnt worry about 11.5 to one. You will be a couple of HP lower than at 12.5 but you have a nice margin of safety there. I used to run my turbo civic at 11.5-11.8 to be safe.
Did you try running the secondary spring on the new setting dave recommends?
Ya you bet Steve.. tried the new setting it wouldnt hold 8600 in the deep.. Drop to 8300 or so.. The gen IIs were awesome in the deep stuff!!