Has anyone used the Challenger spin on oil filter. I see it has a magnet installed in it, is easy to disassemble, inspect and clean. Looks like retail from Aircraft Spruce is about $250 which would pay for itself in 12.5 oil changes not counting labor to cut and inspect. I just ordered one and will see how it works but was curious if anyone had any experience with them?
http://www.challengeraviation.com/newproducts.html
https://www.aircraftspruce.com/catal...erLifetime.php