We print discharge and wb all day every day and no tape on the shirt side of the screen. That is a recipe for disaster. The screen needs to breath or pay the consequences. If you do not have a reg system and are using reg marks to film take the extra step and block out the reg marks with emulsion. Then expose again. You can still see the reg marks through the emulsion and most importantly you now have no tape on the back side of your screen. No tape is your friend.
This is what I've been trying to do. There are so many variables mentioned already, buy we've struggled with the tape line breaking down on runs over 100pieces and I'm trying to keep tape off the shirt side of the screen if possibe and only taping the squeegee side. We have an Alan802 style pre reg system and so we block out the reg marks with CCI Aqua Block, then tape over that on the squeegee side.
We are on WR-14 diazo emulsion right now and I've also been overexposing our screens to a solid 10 on the 21 step calculator. Sometime i feel LED exposure units need more juice, but that's a whole other conversation......
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Edit - sorry that may not have made sense above, we use aqua block all over the shirt side of the screen before it goes up on press, just as an extra layer of protection. It covers all the tape areas including the reg marks and we also put tape on the squeegee side