Wealth of info on this site - kinda makes me wish I'd asked first instead of taking the advice of getting a "later Gates design".
From your reply - I'm actually better with a flat spring design, but I'm not keen on disassembling a brand new part to check for and remove teflon tape.
What is your experience with the Dorman Tech Choice
? - it looks like a flat spring design and is almost double the cost of the Gates and lifetime warranty - but I'm a bit leery of a tensioner with three bolt mounting lugs when the OEM only uses two bolts (I suppose it could work for multiple applications that way, though.)