Have used the Cutting Edge Raptors and Lehigh bullets enough to get some idea of how they perform. That and my experience with over 150 Barnes X's, Fail Safes, E-Tips and GMX's indicates losing petals probably does result in quicker kills. But as with any "field tests" with expanding bullets, there are lots of variables.
But as always the major effect of any expanding big game bullet comes from placement, as long as penetration is sufficient, whether lead-cored or monolithic, not how much weight or number of "petals" they retained.
