Summit oil pan leak

Hey guys I have thisoilnpan from summit and it seems to be leaking from the drian plug..the plug washer is cheesy so I changed it out for a better one ..the thing still gives an small drop about every day..

So do I tighten even more than I already have it..its quite snug..probably a few pounds tighter than spec.
I tried teflon tape to see if that might remedy it..no luck..I afraid to strip this thing out...
Any ideas???
Anyone ever use one of those stripped adapters for oil pan drain bolts?

Thanks

A small bead of RTV around the top of the threads where they meet the plug head works great.
I always do it this way even though my drain plug seats well.
That way I don't even have to tighten it as much as it would normally need.
Dry as a bone.

Clean the bolt and pan surface both beforehand.