yes, ive had four drops but i dont bring henches either. pull one group into the other and help both out until chkkr is the only one left, sometimes he gets slaughtered other times, its u and him 1v1 which is ideal.
same thing with Jacqui and Geoffer: some bosses are tied to groups, and you just do some mob manipulation and hope the only one left standing is the one you want the drop from. If I see the boss getting hit, I'll just go in and hope to get his attention while all the others remain attacking each other. Doesn't always work but if your guy is going to get killed anyway, might as well take the chance. Nothing to lose.