Oxford heated over-grips

[greatmaul]

Hi! I've been freaking out about cold weather here, since it has been dipping into the mid to high 20's. I read that wind chill will reduce this to either 5 degrees or -10 depending on what scale you use. With that in mind, I got some heated over-grips off of ebay:

They're supposed to get very hot! which I don't really understand. I mean, why make a product that deliberately gets too hot, when you could adjust it to make it a little less hot than that. Maybe it heats up very fast that way. In any case, I'm thinking of trying to wire a switch in that leads to a heat sink resistor so I can have at least 2 temp settings.
There's a great review and pics and instructions on this site: http://www.advrider.com/forums/showthread.php?t=429236

I have the grips and it looks pretty easy. I'll post when I try them out and see how that works. I didn't want to do the usual grip heaters because I was worried about ripping off my old grips and gluing new ones on permanently. Now I'm worried that these will be exposed to the weather, so I guess you can't really win. Hopefully these will lessen the handlebar vibration a bit at least!

Oh, also ordered but haven't received a 7.4v rechargeable battery powered heated vest. Supposed to run for a good 5 hours or so on a charge, and my commute is only a bit less than 2 hours, so hopefully will help, too.