I have approx 2160 willpower, 35% crit, 75% surge. That is with consular buff and the biochem bop stim. If I'm reading this thread correctly I should continue to stack willpower. However when I swapped out the end/power augment for the end/wp augment my bonus healing dropped.
To put it in a nutshell: your bonus healing drops and your crit rate rises. On balance, the increase in crit chance increases your average healing done more than the loss of bonus healing reduces it.
Merry Christmas, my fellow Dalborran.