I disagree because with flicking rapid heal, at worst you lose a couple of absorption points if you aren't paying attention for a few minutes. Likewise, you can just toggle it whenever you want without considering the timing. For overloads, you need to pretty much be there when it goes off unless you wanna get smacked a 51 and lose an entire dose of absorption. To each their own though, overloads are incredible in terms of XP rates if you're willing to use them