While speaking with Trent over at Unity Tactical, he noted that the DP Pro is taller than the RMR, and that the BUIS would in turn have to be taller, too. That, and the addition in weight (as the DP Pro uses steel and aluminum rather than magnesium like the original DP), has turned me over to the RMR RM06 for my P30LS (which should arrive back in my hands any day now). Just something to ponder.