A friend, who is a skilled woodworker, has offered to make an end grain cutting board for me. Wow! That's exciting. How thick should the board be - I've seen good quality boards from 1 1/4-inch all the way to 2 1/4-inch? What factors enter ito deciding the thickness. The board will have a pattern, and one thought is to use hard maple with purple heart. Besides purple heart, what other wood might work well? What about walnut? Thanks!