I guess I'll just stick with using Death, as it sounds like you guys rely on the summon as well (which is the main reason I find myself annoyed, because it means I have to spend time working the TP up again instead of just jumping to the next Adamantoise). That's my main gripe - you can't just keep killing them, you have to get TP up to do it in decent time.

And the catalogs do stack, but each one makes it less and less valuable. In other words, if one catalog was to increase chances of getting an item by 25%, then having four of them won't make every item 100%. I think they mentioned that 2-3 is basically all you should bother with as anything else will only increase your chances by a minimal amount. Never mind, they don't stack at all, turns out I was reading about something else!