i always use the clutch up and down,once read a mag review,they answered the same question many people asked regarding clutchless changes,so they bought a newish honda hornet and rode it that way,it eventually failled and the repair bill was,well it wrote the bike off,i cant see any advantages on the road,
on a similar note 1st to 2nd gear changes when revved hard in 1st can give a brutal clunk on my bike,has anyone else noticed this
only my thoughts on the subject but i need to look after my ride and i try to ride as smooth as possible becouse i think its the key to been fast and safe
nick