Well, taking a break from my usual combat related things I decided to a bit of skilling, one of a few possible things on my list is 91 Herblore. I know the cost of Herblore is high at the moment but if it's really only going to cost like 15m extra or something I don't care. First off, is getting a boost of 5 rare from a stew? Overloads are not my reason for getting this level but knowing I could stew to them would be nice. And last, what would estimated cost to 91 be (Possibly 92 if 5 is too hard to get from a stew). I do have a decent cash pile but I don't want to blow all of it on some fancy potions. If I could get it for like 80m ish or something I would be fine with that.