Have you dynoed your car since? if so what HP did you get?
Which engine & box are you using & what sort of car have put it in?
Lots of question's
I found it easier to make my own tailshaft hoop,the hoop i made is at the gearbox end of the shaft, so it still won't help if the same thing happen's again,have looked at making a hoop for the middle & rear as well,told you i am paranoid