I have a number of different stocks. It depends on the hunting I am doing. If I am stand hunting, I prefer my thumbhole for sure. Still hunting or bad weather, usually the synthetic std stock. My laminate is the prettiest, to me.
In regards to the factory synthetic stocks...I feel they are pretty darn good. And as far as a replacement...the std synthetic seems to be the most popular around. Ron, I have the same one you do on the gun I bought new in 1994. I doubt you'll have any issues with it.