Ive had my MP 40 for 2 years now and its a solid pump It adds that je ne sais quois that my hammerhead CL cant provide. I switch between lagoon reefcrest and short pulse. Less short pulse, it tends to make me go in the fetal position in a corner covering my ears.
Ive had to replace the wetside 5 times. Now that may seem like alot, heck it is but the pump is not at fault here. I had the little white washer on the wrong side and that melts the bearings and when my trochus reproduced the little buggers kept sneeking in to the damn thing and jamming the propeller. I had to mod the wetside opening, I took an old wetside cage and cut the front off then glued it to the front of the good housing, porblem solved.