I have a Powermaster on the Stratus with a 16V Lithium Pros battery and no issues and this engine is fairly difficult to turn over by hand as it has 60MM Babbit gearings and a fair amount of spring. The dragster has an XS 16V with a Mopar mini starter with zero issues, I did purchase a Powermaster for it as well but so far zero issues with the Mopar mini

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"