I just went into the basement and put a true bar on my Gladiator. I have almost 1mm of gap starting just in front of the front binding and going almost all the way to the back of the board. Also have the most binding suck that I have ever had on a board. Having said all that, I still love the way this board rides. The concave base hasn't been an issue. I agree with Chris, don't worry about it just ride and enjoy.