Do you find that using partially frozen gives you a better end product?
I wonder what the difference is between partially frozen & fully frozen.
I find that you can get a better sear or bark on bird parts (non marinated) because it starts sooner and therefore less of a chance to over cook the center. So I actually prefer partially frozen bird parts especially breast for grilling or smoking.
On ribs they tend to be a bit more "smoky" all that said I always like to put cold meat on the grill or smoker, never room temp especially steaks.