I enjoy thumbhole stocks as well, I have a TC Omega Muzzleloader with a thumbhole stock and love it. My father just purchased a thumbhole stock for his TC Encore and I think it is necessary equipment over that weird configuration the Encore originally comes with.

They are a little bulkier to carry, they also tend not to come in the hardwoods (instead laminate or synthetic) which I don't particularly like. My problem is that if it is laminate they ussually do not checker the forend, which bothers me with my Omega.

I agree thought that I feel that I have more control over the gun in my stand with the thumbhole.