Because data sheets are not written for idiots the are written for grown ups. The are not aimed at beginners or hobbyist but at engineers. We are just privileged to be allow to peek into their world.
Um, yes I know that. I was being slightly sarcastic. I'm not as dumb as I may appear. I do know that watts and temp are 2 different things and how physically hot something gets depends on many factors. I was hoping for a general rule of thumb here but I guess there isn't one. I just don't think the v-reg should be getting that hot, but thanks for the info.
Thanks for your info as well, very helpful.