Jeff, the most important thing when using bscis to ALWAYS attach a bottom board. Just use gorilla and put a good weight on the top until cured. Heck, you can stack the stool and just weight at the top, for that matter. Just plan everything out prior to gluing---The reason for the bottom board is elementary, sir---it will keep the bottom of the cork from chipping off,, I have some Madison Mitchell cork blacks without tail inserts that were made in 1959.. Although i no longer use them, they were quite serviceable when i first purchased them, AND, i could line and weight them and use today.. Just use common sense and do the bottom board thing, bud.