I know the extra speed is appealing dude but at the end of the day if it aint broken dont fix it. Normally I would have been the first one to jump in on a thread like this and tell you how pants the shub is (and vmfriend wouldnt have beaten me up for it) but I have been away all weekend and just got back. It has worked out quite well because other people have said it instead of me which makes it all the more sweeter
If and when VM do bring out a new shub dont get it straight away. Going by their track record with this shub, despite their assurances of lengthy and rigourous testing, it will be bug ridden from day one and take 2 years of firmware updates to get it half working.