Personally, I would prefer they just removed addersting entirely and had Toxicon become an addersgall dump that regenerated mp.

At the moment, when you cap gall the only abilities you have that use it are healing abilities, which you don't always need to use and they just so happen to be the only way SGE regenerates mp. I find myself staying overcapped (and losing out on a lot of mp gain) because I dont want to overheal, which is very unintuitive design in my opinion.