I saw what happened to Joe Krupa at Kansas City in 2004; I was there behind his rail gun. His base moved because he didn't "nail" the base in on the bench while all the other big name shooters around him were flailing away on the bench tops. And further, that particular bench had been repaired and a piece of the material used to repair the top broke off and the front peg slipped into the old hole. That rail gun was tuned and it was shooting small enough to win. Joe's desire on that day to not dammage a bench top cost him perhaps three Hall of Fame points (the cost of which to get into that position again certainly cost Joe hundreds if not thousands of dollars).
After that incident I believe that Joe started using one of those huge orange dead blow hammers to "nail" his base to the bench, as well as in set-up, Joe bounces the top against its stop to ensure that the base is securely set in the top. He also uses 50 pounds of lead shot on the base. The idea of beating up the benches still displeases him, but it is a matter of not doing it and giving up an advantage to the rest of the competition. (I also disdain talking in the third person.)
I recall Dennis Thornbury describing the ruling later in 2005 at St. Louis when the NBRSA Director's voted to remove the block in front of the rail bases on the bench. Dennis elequently stated that perhaps we, as precision shooters, need to be more careful when we shoot these rail guns instead of "horsing" them around. I was standing next to Dwight Scott (a renouned Hall of Fame rail gun shooter) and his comment was that shooting these rails is a "full-contact sport". Since Kansas City in 2004, using the "beat the heck out of it" method has allowed me to win seven points with that rail gun. Do I still cringe when I pound the top in? Absolutely yes. Do I cringe when the other shooters around me flail away with hammers? Absolutely yes. Do I think that some of those same shooters (meaning those who chase points at the National level) would have a problem if a range were to impose the use of something like Super Feet, when they have had significant success over the years not using them? I would believe that the answer certainly is yes.
I have tried the smaller Super Feet with my rail gun and it seemed to not shoot as small. I haven't tried the large feet, but today I still like to have the rail sit on the bench top. I do believe that allowing a block on the front of our "unlimited" guns makes good sense and would help in minimizing the need to "nail" rail guns to the bench. I never seen any advantage to nailing a bag gun rest to the bench, but I do see a lot of shooters doing it. (My Hayes front rest weighs 30 pounds. No normal bag gun shooting has ever moved that "boat anchor".)
Bench tops are going to take some beatings; that's the nature of our game. As stated above, it becomes a trade off of the range offering shooters what they feel they need to be competitive compared to the cost of the range repairing a bench. I can see the point of the guys who spent time, energy and often their own money to make a nice place to shoot. That is human nature. But, from the shooter's perspective, the cost of a competitive rail gun and traveling hundreds of miles to a Nationals in the pursuit of competition and its rewards dwarfs the cost of repairing a bench top in those shooters' minds. It's a cruel sport.