Dan, it sounds like you're stuck between a rock and a hard place. If you pin the secondaries on chip# 2, you don't really get an accurate reading of what your power looks like down low. You use chip# 3 and you potentially say bye-bye to your engine. Or you use chip# 4 and leave disappointed with your numbers. If you're looking souly for number, I'd go chip# 2 and pin the secondaries. Sounds like the safest bet of the 3.
And Todd, I think you'd be making the right choice in going with Brenspeed. Unlike ADC, if you want to make some adjustments to the initial tune, Brent is willing to help you out at no additional charge. ADC told me I'd have to pay them I believe $80(?) for additional tunes, and that's if THEY messed up!!

Hell, my tune is pretty spot on with Brent's first series of tunes, but was more than happy to send me more files with some more timing added, just so I could see if it could handle it. Maybe I could contact him before SZ06 and he could get us a group buy on them in time for the dyno, if anyone is interested.
Mark