Until they start putting synchromesh transmissions in motorcycles, it will continue to be a good idea to synchronize the gears while shifting. Back off the throttle while upshifting and goose it a bit while downshifting. Multidisk wet clutches always have enough drag to make this behave exactly like double clutching a sliding gear car or truck transmission. And, like the 4 wheel variety, matching the engine speed to about what it would be in the gear you are shifting to at the speed you are moving gives the best results.
