I've read a lot on here about the weight of the return spring but have always been hesitant to replace it with a lighter unit. I reckon Mr Honda had a reason to make it that way & who am I to know better.
Anyway, being tired of my right hand going to sleep hangin' on to that big spring I finally bought an imitation crampbuster gadget to slip onto the throttle grip. I haven't acutually riden the bike with it on, but man oh man, doesn't it feel great!
I also got a new pair of gloves, my old ones were getting a bit tight & were probably compounding the problem.
Can't wait for my next ride to finally be able to relax a bit without slowing down. Best Christmas present I've had for a while.