we don't use tape anymore, even on wb screens - probably taken from the good book of Tony vers 1 chapter 5 , we use the larger scoop coater. We tried the permanent blockout and with the larger coater, the blockout caused too much drag on the coater, making it stutter. we were using something from kiwo but I'm down to try some of these ones too. next time I order screens, these will be on the list to try.