That's my method, too. Go buy the parts store junk, install it, get my core rebuilt by the old retired guy with the shop out behind his house, then return the auto store junk and get my money back. I call it rent a part for free. Old Dave ain't quick, but he's damn good, and he uses genuine Mitsu internal regulator boards. Trouble is, I'm runnin' out of Old Daves....

Not responsible for advice not taken...