I've had a Tourmaster heated jacket liner for two years. No hot spots, don't feel wires which are CF, lightweight and 3 settings. To use #3, it better be very cold out, very fast riding and/or poor cover jacket, as it will literally cook you. As with Gerbings, it draws too many amps and will shut down your CANbus accessory outlet. I have TM's new BMW plug and use that with a kit which exactly (visually/mechanically) replaces the OEM CANbus one with one that is wired directly to the battery. Reasonably priced as compared to others.
You can piggyback their pants and/or gloves too and regulate them separately. So far this winter I've had no need for heated pants or gloves. I just use Pepper Fleece pant liner if temps drop to low 30's or below, and the MRA double bubble race forces enough air blast of back of fingers/hands allowing me to wear my summer "holey" riding gloves until it gets below 36. Then lightweight Thinsulate-lined gloves work right down to teens driving 80mph. The bike generates plenty of wattage.
Also comes with a velcro adjustable strap to hold the heat control against your leg, which if you forget to bring along, will allow the controller to whip behind you in the wind at speed and whack the paint on the left rear side panel of a K13S without panniers mounted. That happened once for me and it completely marked up the side panel with hundreds of black marks... all came right off with Scratch-X and no paint chipping.
Last edited by Sheep; Feb 16th, 2010 at 8:16 pm.