Early Polyurethane Trans Mount Qs

When I did my B body (It was a stock 318 with a 4bbl intake and headers) I used the poly engine and trans mounts. I didn't like the vibration and have thought about going back to rubber.Now if the engine had a hot cam and some compression you might not notice. A few people have said to use a stock rubber trans mount when using poly engine mounts. Maybe it's just personal prefrence,much like engine oil and filters. I do know that a friend just put a poly trans mount in his max wedge car with no adverse affects.But that thing will shake your fillings loose.