1. What brand are you using and would you recommend them?
Gerging's, yes. High quality, unbelievable customer service.
Also, if you want to move from bike to bike, an automobile 12-volt plug adapter is available with a socket for the Gerbing's.
2. Are the heated glove liners a good choice (cheaper) or go for the entire glove?
I reckon that's your call; dexterity may become somewhat of an issue with liners, IMHO; YMMV!
3. Can the electrical system on the KLR handle the load?'
Generation 2 (2008 and later), certainly; Generation 1? I installed a 280-watt stator from Race Tech to keep up with both my gloves and jacket liner on my Generation 1.
4. Best place to buy? (price, service, etc).
Shop around; the factory warrnty is good, regardless.
5. Other info you think I should know but I'm too dumb to ask!!!
The latest jacket liner has two input circuits, intended 1) Jacket liner wiring, and 2) Glove wiring (glove connectors are on each sleeve). This arrangement assumes a dual controller. An auxiliary output connector, common to the glove circuit, exists for thermal pants or boot liners.
This system can be "tricked" to power two garments (e.g., jacket liner and gloves) from a single controller by the following procedure: Plug controller into glove circuit; plug auxiliary output into jacket liner circuit (I think I got that right!).
My experience with the Gerbing's includes a 100-mile trip in sub-freezing weather through snowfall at 70 mph on Interstate 95. Under these conditions, what? ME worry? The gear does its job, in that environment!