Anybody using the SAF Air Oil Quick Drain Plug in their 390? This looks like a great convenience, but I have seen some reviews that indicate they leak soon after installation. Any opinions? Also, the Spruce catalog does not list the 390 as one of the compatible engines, but does list many of the 360's.
https://www.aircraftspruce.com/catalog/eppages/safOilDrainValves_06-00637.php?clickkey=92892
https://www.aircraftspruce.com/catalog/eppages/safOilDrainValves_06-00637.php?clickkey=92892