All you have to do is watch your DBM/Deux Vox Timerbar, and interupt preemptivly @ zero. there is a split second you can interupt the heal before they bubble. Works great on teh door strat where you stack your raid with one color strat.
On twins, If you time it just right, You can Kick/Windshear/Mindfreeze/Shieldbash the Heal before they bubble.
Enjoy