Over the summer I took a poll on the best builders out there. I got a lot of feedback on that. FAST was the only builder that no one had anything bad to say about. I spent several hours calling and talking to the mainstream builders around the country as well. However Kevin was short on time and wanted to sell me a +4 serval. That was not going to get me decent gas mileage for trail riding. I also called Jay at IPS. He had more input then anyone else on a build and told me about some new things that he come up with for a banshee build. Since I had my bike dynoed by Jay the previous year I knew him and was impressed with his attitude, knowledge and willingness to work with you in the shop. Plus he has an accurate dyno. He's just a two hour drive from me. So I sent him my assembled bottom end, good cases and virgin cylinders. He worked up a +4 mill with a stock 64mm bore. Ended up with 373cc's. After some trial and tribulation with the domes and jetting. We ended up with 69HP on a unloaded run and 73HP with a 30% loaded run. This is with FMF Gold series and Q series legal spark arrestor DB rated muffs. Just have to wait till next riding season to try her out. I'm sure it will fly. The didn't get a pic of the 69HP run but this one was close.