I'm with sci. I'd definitely opt to do reps max-stim style and get more total reps in overall with the same load, rather than cut the load back. The end result will be more volume and more work than if you did dropsets, which should, in theory, mean more of a growth stimulus.
Max-stim may seem to take more time than regular reps when you initially begin doing it, but once you get accustomed to doing the reps that way, you'll find that your overall workout takes just as long as before, if not less time. With traditional reps, I spend a lot of time idle, resting between sets, so that 3 sets might take 15 minutes to complete. But I can do 20 reps usually within ten minutes or less, depending on what exercise I'm doing.