There are 50 responses in a thread called "ball bearing" that was last posted to on Dec. 30th. I can't figure out how to post a link to that thread so you will have to find it (in this part of the forum). But to put it simply, EVERY person I know with BB turbo's (myself included) think they are worth every cent. I run a t-72 on the street and it spools faster than my old TE-62 (same torque converter/setup).
Derrick