yea, i am leaning towards the 3's don't need spacers for the twins but wondering about the lifespan of the rubbers and reeds.
money doesn't bother me but don't want to replace units every year thanks for your input.
The delta 3's are better than the delta 2's. I personly have not heard of any delta 3 failures. they changed the way the reeds are put on the reed block and that fixed the problem. I would not hesitate to buy them.
went with the RAD VALVES from BOYESEN cause of the aluminum
housing with replaceable mounting rubbers, just waitin' for snow now. had 2 people who had V-FORCE 3 failiers with low milage so i kinda went a differnt route. hope i was right.