Well, after 2 weeks, the S/C is back from Magnuson and back on my VX. We reinstalled it Friday. Works great!!!! In fact, it seems to work better then it id when I first bought it. Jerry Magnuson was very good to work with considering the amount of work they had to do to the internals, They replaced everything except the case for about $270.00; new rotors, bearings, nose shaft, gears and bearings and honed the case. Anyway, I wish I had information to offer any of you with a S/C as to cause of the failure. Magnuson could not determine any direct cause and just said that like most mechinical things sometimes sh*t happens. Oh well.....the VX is back and bad as ever!!!