slipper is too tight. I raced MGT's and the only time I ever broke anything was when I tightened the slipper all the way down.
as far as upgrades:
the RRP is nice but not critical
the FT brake disc is a big help
I would get lunsford turnbuckles for it
Factory Team steering kit is a must
heck, I probably have most of this stuff as spares because I havent had the heart to sell my old racer.