A=Advanced drummers and X=Xtreme Drummers...............................
Just kidding.......the difference is the VDL (that's on A,that's the reason they are more expensive) but honestly both pedals are killer.Whatever you choose you will be waaaay happy,great pedals.Just make sure to check the longboards in both versions,the longboards are designed for drummers that are not using their heels on their playing,that's us!!!!!!!!
yes, you should take your time, to test these pedals in a store, but i also think, that the A`s are better. you just have more options, and eypecially the vdl changes the feel of the pedal so much.....more than i ever suspected!!