I too have ran 10/12 meetings with my (2nd batch) sv and all the gearbox is totally std..never had any of the probs I hear others have had-apart from a little binding initially-which disappeared after a couple of runs.
I was told my diff would fall apart etc in no time blah blah-but I think if things are built correctly-there shouldnt be a problem.
I'm even using the stock turnbuckles!!!
I've probably put the scud on it now but so far so good
