Re: which is better?
I've never tried it, but I imagine that not only will it dry out more... but that it would take longer for it to smoke correctly.
If you put the tobacco in the bowl directly from the fridge then
1. It will probably take longer to heat up the necessary amount to smoke the best.
2. It will heat unevenly, leaving the bottom tobacco colder longer than the top and probably doing something undesired that I can't predict.