So far my list of mods for my 1997 850 T-5 includes:

Pod Mounted Boost Guage
Relocated Front Horns
Removed MAF Screen
K&N Air Filter
Modified Wastegate 7 Full Turns
17x7.5 Moda R4 Wrapped on 205x45x17 Yoko Parada Spec-2
Cross Drilled Rotors w/ Carbon Kevlar Pads (Not Yet Installed, having brakes put on thursday)

Well I have been turning my wastegate up slowly over the past week. First 3 Turns on the 21st, 3 days later another 2 turns, and 2 more days later I turned it 1 more turn. Well in 1st gear I have reduced turbo lag a great deal and now run 11-12psi, in second gear I run 13-14psi, and in third, fourth, and fifth I run 15-16psi constantly. I have boost spiking but it doesnt seem very bad. It is around 16-17psi. My boost fluctuated at first right after the adjustment but has been holding steady at these levels over the last few days, and I have been FLOORING IT. Should I expect this amount of boost to stay or will my ECU eventually turn it down? I havent had a chance to dyno, or use a g-tech meter on my car. But let me tell you, I can hit 140+ no problem. I know going 140+ is quite insane, please dont flame, its not like I do it at 3pm on a busy street, I save that for 3am on I-5 heading to L.A. =) Anywayz just wanted to share my results, which I think are quite astounding.