cartridges

so I have some reelskin on my wish list since it looks thicker and so many people here seem to like it, however until then I have a stack of fake skin that is a .05” (1.27 mm) thickness, cheapest amazon stuff. what would be recommended to put underneath the skin to keep from clogging the tubes...

Newbie question ahoy! I just presumed that as cartidges have not be around that long... that these would all be pretty decent (as market is not flooded with copies/ cheapies etc) but I have some pin ups & I notice some feedback on these has not been too great (I know ...I know a bad...