Everyone is welcome to run whatever they wish.
This said in other threads.....but, I've run the boyesen radvalve compared to the stock reed cage and compared side by side to a DFII. There is no comparison. The radvalve is a waste of time. The DFII isn't. The DFII is the only way I can run a -30 in the woods. It runs as well as the -35 ever did..AND I fun the fun-on-top, too! Set to low tension, btw. I tried high a couple of times (different valves, different reed stops, different reeds)..didn't care for it at all.
IMO and all.
My radvalve reeds didn't last a year.
Seeing as the two valves cost pretty much the same $$ these days (they've come down a LOT in the past year), the choice is simple. The one that works.