On my 748 bip I find neutrals in 4to5 and 5to 6 occasionaly, but only if I try to 'flick' it in with the clutch at lowish revs. Positive boot sorts it
utdevil:
Now I clutchless change up from 3rd and have no probelms at all. Not sure if this is normal, but I have spoken with a couple fo Duke guys and they seem to have experienced similar.