Do you mean a pad for the whole deck or for the tail?
If for the whole deck - yuck
Whats wrong with wax? Your feet shouldn't be slipping off wax in the middle of the deck.
Or a tail pad...
Yup, they're great
Not only do they let you put lots of pressure on the back foot, but also let you know where your foot is in relation to the tail (or is that just me that needs to be told that?)
As for what type - some of them are 'humped' in the middle, to varying extents, and the back bit (er? Whats that called? Anyone?) comes in different sizes. I find a small 'back bit' is better else it whacks the knee when I pop up
Theres not a lot in it - it comes down to personal choice and colour/shape of board, and the shape of your foot etc etc
