Originally Posted by jryan26

We know this!

Originally Posted by Viaqua

Agreed to the nth degree about throttling. It is by far the key to proper drive integrity and I can throttle well. We all can catch the errant wave though but I want the beef. The XR/ merc/imco shorties makes a lot of sense as they are plentiful and appreciate the B max input AND I already have the HP gimbals. Running buddy has a 2001 staggered 42' L'ing/575's, Eikert heads, proper remapped/dyno'd 575's at 725 h.p.( I can use his mapping), preoiler, Strainers, B max's with Imco shorties/dry tipped and although he is still looking for the right prop setup, after a lot of mistakes he has it dialed in. I will go with the XR combo then and get the heads done the same. So many thanks for your input-it means a ton to me.
Mark