The 732 has greatly improved range, and better probes rated for higher temps. Get the 732, you wont regret it i don't think. I really enjoy mine, as it gives a lot of information. However it won't improve your Q. It will just make cooking it a lot easier, as you wont have to stay right on top of it all the time.
UDS, cheap o grill, rusted chimney, yeller wannabe thermo pen, Maverick ET 732, 1950 model wife.