$20 Stock WGA Spring Upgrade
Just like the thread above, I have just taken apart the wga that came with the hahn kit. I used the ptp spring I had in my stock wga. The hahn wga was so easy to take apart, I just used a flat head and pried it apart (I did it @ work took about 5min to do). Comparing the Hahn spring to the stock wga (stock stock spring), its spring maybe 1'' to 1/2'' smaller but they feel the same. The ptp spring compared to the hahn is about 2'' smaller but PTP spring is way harder.

PTP FTW
I was the guy that posted pic's in the thread above. Just follow that but just use the ptp spring rather than 2 like I did. I will post results once I get away from work.
This should work for you guys that want to hit over 25psi. Like I said I will post results. My goal is to have a really low boost and have a nice hi boost. But I have to preload the wga so much so it doesnt drop 25lbs @ redline. When I do that I am raising the low boost, since the low boost runs off the wga. Yes I do have a ebc.