01-19-2009, 09:05 AM
I have used the 4% grades quite extensively on my logging layout. It allowed me to easily transition to various heights. When I installed them I used white glue, I pinned them in place in a few key locations, then set some old Physics textbooks on top to hold it overnight. Worked well for me and I would reccoment them for anyone who needs to transition between multiple heights of foam.