Dynamic, if given enough info they make one of the best hands down, ,,Turbo Action, been another one of the best for years, altho, the last one we got and sent back 3 times has been a very bad miss on setup, but it works! they just cant get to the 5200-5500 I need, , it's best is 4800,, every time I send it in Paul says you will send it back to have it tightened up!!,, nope , I gave up, Just run it!!
I took a GER out to put in the above verts, I gained nothing, I still Have my GER, just in case I need a spare!!