Ken, I will send you some extra. Don't worry about sending it back. I already have some pre cut to fit the lower slots. I will include the tissue paper since that is how a filter that is purchased would be used. I am going to test mine again using regular MGIV today because it is faster than MGWT. This time it will be tested fully closed rather than open to see if I get more then 3 minutes, which shows fog with the vanes fully open.
On another note, I tested the yellow and black edged filters with the vanes fully closed with Kodak RA4 paper awhile back. These both use the same 3406 and 3407 material, but the black tape filter has more sheets in it. It tested to 7 minutes +, so maybe it is filtering something out that a disc just isn't showing.