If you purchase a Forrest blade, you are already voting with your dollars to have the best tool experience out there. Adding this blade dampener/stiffener just guarantees that you will do the most to be sure of having the highest quality tool. Whatever this costs is worth it to know that you are enhancing your blade for the best performance possible. I don't do that many deep cuts, so have yet to moan about limited depth - hasn't been a concern yet.