RTFM

The healing isn't really needed on dags though, assuming you're using necklace+bonecrusher+soulsplit for infinite life+prayer. :) On Ganos, sure, why not.

I was not referring to camping Dark beasts as slayer training because you'll most likely not get a bow drop while on task. Camping them as a money-making-method rather than crafting runes after you've hit 99 rc as Jebrim suggested...how could that be bad? After all, any rc xp after 99 is "xp waste" assuming your goal is all-99. In that case, the range/magic xp from cannon-alching is better, and the profit/hour may very well be at par with rcing. If your goal would be all-200m, rcing is obviously better.

Dark bows sell for ~6m. At 90 slay you can cannon Dark beasts while alching for some extra range+mage xp while earning those 2,5m/h. Also, I can't see why merching to gain wealth in 07scape could be "wrong". I was under the impression that merching was one of the main reasons why people wanted the pre-GE RS back...