[dcb]

Benefits:
faster and smoother shifting, less wear on clutch and related components. Once you get moving in 1st you can keep a better grip on the bars (or do something stupid/not shift related with your left hand). I haven't see any evidence of increased transmission wear in countless thousands of miles, though people who have never done it will swear that it is a bad thing to do.

Yan, your tractor isn't sequential, and most bike don't have synchros. You have to get back on the gas of course, as quick as you can flick your wrist and lift your toe if you are accelerating hard.