Topgun & Country1 - have either of you had a stock split or scope break while using a lead sled? Or is that just what you have heard? The reason I ask is that since reading up further on it I have heard others say you can crack stocks/ruin scopes, however they are often shouted down by others that say its nothing but an old wives tale.

Also like Centaur stated there is a heavy duty spring which would allow the rest to give a little, soaking up the recoil, and hopefully not transferring it all into the stock.