Err if you read the post 6 you will see I am talking about the positive feed to the brake switch...hope I havent confused dewang though he never did PM me an address to send the stuff to!
and no I'm not wrong the positive feed to the brake lamp / switch or where ever is never grounded . What IS grounded is the other side of the bulb filament that's permanently grounded...get a meter on yours if ya wanna check
as for connecting to the tail light feed and only having warm hands when the lights are on...fair enough if you have a bike with permanant lights on, but the feed to the brake switch is there all the time so thats the usual place to go for