Thanks for the suggestions. They're roughly two inches in diameter by half an inch thick, and I definitely think they'd burn a lot faster than the solid chunks. I don't think I'd want to count on them as a primary source of smoke since they're a lot less efficient than the solid chunks are, but I like your idea of potentially mixing them in (with or without foil).
I think I'll hold off on using them for at least the first couple of smokes. I think I'd feel better establishing a baseline for myself on the Model 3 so I can make a more informed decision on whether it's worth an experiment. If I end up trying it and learn anything interesting, I'll let you guys know.