I'm currently leveling AST on my alt and I gotta say it's hella hard keeping up noob tanks compared to WHM and SCH. With WHM I got Bene and regen stacking. With SCH I can let the pet do the healing with Lustrates in between. But the one thing that really irks me is the lack of synergy between the other healers/AST. Diurnal and Nocturnal overwrite each other and that really annoys me.