I am terrible at eyeballing when it comes to cutting black foam for a wound VAC! I have never tried making a template or anything but I might next time! My question is: What do you do if you cut the black foam and put it in the wound bed and then need to cut more foam off? The foam has already touched the wound bed. I don't like putting the foam in, removing it and cutting more foam and putting it back, on and on. However,iIs it OK to do this? It probably isn't optimal but the wound has been cleansed. I can't see another way around it other than starting over with a new piece of black foam every time!!..which would be very wasteful! Thoughts...