The heavier the riser, the better it will mask handshock.Cocobolo, chechen, and Bolivian rosewood are the heavier (and more reasonably priced) riser materials I know of. Tough to get a piece of ebony big enough for most risers, African blackwood in the size is rare and very expensive, phenolic costs a good bit also. Those last three are overkill in my opinion--if a bow has so much shock that it needs that much weight in the riser to shoot it (except maybe small longbow risers), the bow design itself needs looked at. Some bows have massive risers and don't even need an extra heavy wood to weigh a lot. I like a heavy wood in a smallriser, but don't feel it's needed in a well madebow with a larger riser.

Chad