transmission fluid filter and gasket questions , metal or not ?

I do agree that for a street vehicle, the fibre filter is the better of the two. However, I wouldn't use either one. Off shore junk. Yes, maybe I'm being picky, but the off shore filters can be/have been troublesome. The dacron material may be to dense and might cause some restriction. I've seen this in the past, on a TH400 using an off shore filter. The material was so dense (filter bought for low$$ from competitor) that the pump was having a hard time picking up the oil. The shop owner couldn't figure it out, but his builder knew what the problem was. An even bigger problem if you live in a cold winter climate. That was the last time he used/bought any transmission filter that didn't say Seal Power or Filter-Teck on it(OEM) for any MOPAR, GM or FORD. Just my experience and observations from the past on OFF SHORE products period used in the transmission industry for domestic cars.
Other than the low-ballers, my customers preferred the brown(duraprene) gasket over cork, if the duraprene gasket was available.

Good info, and I guess I have been out of it long enough we didn't have to wonder about where the filters were made.