I almost bought a rhinehart.
Luckily, two buddies that have em steered me clear. They both hate theirs. Hard to pull arrows and apparently leaves a horrendous residue on the shaft that takes a lot of ajax and elbow grease to get off.
As much as I hate to buy into the "koolaid" companies that pay lots of "celebrity hunters" to plug their product, it IS tough to beat the block target.