Well my TBS needles came, and I put them in. Not sure if I can tell a difference between them and the stock needles. I asked if they had any shims, and since they weren't on the microfiche, I'm SOL there. I really need to get a dyno run done, and I'll do that in 2 weeks when I can get a discount rate(still $50, but that's about the best you can do in this town). I'll probably order 150 and 152 mains so I can have them on hand for the dyno run.
I'm not sure if the bike has a flat spot. Looking at other dyno runs for our bikes, you can see how the horsepower takes off above 5,000 rpm, so maybe it's just normal. It's not like the bike bogs down or anything, it's just not as crisp on the accelleration from 1/4 throttle to about half throttle, than it is when you go full throttle up through the gears. I probably won't be totally satisified until I get the big bore kit put in, but that's a year or 2 away.
