Nevermid. I went and searched they have a few testers running around with MB 20° hpops.
i can't speak for something that's almost 2 years old. I can speak for his hpop holding more then my t500 did with the same exact setup.
jbolen is referring to the MB 17 degree pump vs the T500. I have sold several of the MB pumps as well and have yet to have an issue. Even used two of them to replace the 15 degree pumps on my Terminator duals on my personal truck.