Not to steal from your thread but I've smelled odd smells when i really work the tod, say going up a muddy snowy hill. I always assumed it was a normal-ish smell with the tod switching power around. But then i started to wonder cuz my tod doesn't work in reverse and it felt like it had a little less power.
But anyhow i have smelt a kinda burnt smell too so I'd be interested to know as well