As a former Hoyt owner, I can tell you I had no problems but heard quite a few stories about split limb problems. On the flip side, it is just as likely that a solid limb will be shimmed wrong or warped. Same problem on both types, just may have the probability of happening more often with a split limb(since there are two).
Split limbs are harder to find these days, so for that reason alone, you may want to choose solid.