Mnk and Drg Burst in PVP is disgusting. I've been doing 1.2k Full Thrust Crits on Whms and Blms after they are stunlocked down. Usually against a blm what we'll do is mark the blm... rush him and stick our pld on the healer. The pld can stunlock the healer at least for a good ten seconds straight before DR stops him. Usually the other dps will be trying to take out our whm.. their 'single' dps, while me and the mnk are taking down the blm... if the whm hp dips below 75%, we do a hard switch off the blm to the whm real quick to kill him unexpectedly before turning back to blm.

tl;dr, l2p.