i am 6'2" and just put the windam bend protpers on my YZ (reasonably high and not too much pull back), they feel very good but i havent riden on them yet! be careful with some taller bars (eg button) since they have a lot of pulback and i believe these will move your elbows in.
also, these bars were etched with the bend type, so i would expect if you remove the left grip you will find what bend they are!
but if you are tall on a yz you can drop your pegs very easily, i couldnt believe how much better it felt! do a search, there are several threads on how to do this.
i will let you know how they worked
later
bruce