Decision made, sounds like, but I'll chime in anyhow.
For those under 100 shots, I'd opt for the XTP. It has flat/HP nose, which I think is more effective on critter. It makes a big hole. It costs less. Before I'd buy shockwaves, I'd got to a 300gr XTP, as somone mentioned.
I've killed several deer with the humble 240xtp on 95gr Pyrodex RX... deadly if I do my part. I've only recovered two bullets - both from high shoulder hits, where they broke bones and went through a lot of muscle - and both were perfectly expanded, no separation of core/jacket, just under the hide on the offside. Every one I've hit in the ribcage punched completely though. Impressed the heck out of me. And they're cheap! Looking at a ballistics chart... 300gr XTP would be better, but I've just not bought any. Maybe next year.