Preserve your grips!!!!!!!
Trick I used when courier (to save money!) was, when a new pair of heated grips were fitted, I would smear some silicone on the grips, then use an old long bootlace, tie one end around the grip at the end, & then wind the lace round & round in a close spiral motion until reaching the other end, tie it off, then smear some more silicone into the lace, finishing with a thin coat over all of it, allow to dry overnight & you have.....
1- fatter grips= more comfy over long distance (for me anyway!)
2- Grippier grips that will last quite a while (& very little heat loss)
3- if/when they wear or get damaged, just replace in the same fashion, very cheaply, (the original hot grip undrneath staying in pretty well perfect condition) mine would last for 150,000 miles or more!
4- A great talking point when people see it (it looks like grease is smeared all over!)