Zion vs. TOD. I guess i should add my two cents, as the only beta tester going TOD to Zion, and one of the few people whom has tried both.The TOD is a true powerhouse when the batteries are fresh. But it is a bit of a wild card after so many bowls, when batteries weakened. When batteries are fresh you really can't hold the button very long or you will combust. With a true trigger the device would be more controllable, as you could feather for heat changes. But it has me running scared a bit, and results become less predictable with low batteries IMO.The Zion doesn't have quite as much punch on the top end, but is much much easier to use and is a more enjoyable experience. When i first got my Zion i was slightly gun shy, and scared to hold the button. TOD had me in fear. I was only using top temps in the Zion, and would get full warm up and get my hit finished all in around 10 to 15 seconds of holding the button off and on. Off and on. Feathering it. Worried i would combust a fresh bowl in less than 10 seconds like the TOD can do.I now hold the button for a full 10 or 15 seconds. Taking the hit without letting off the trigger if i want to go full blast. With the TOD, you would likely be to combustion in well under 10 seconds. The Zion instead gets to a good temp, and levels off a bit more, allowing me to take longer hits when i want, and is very nice through water.I have adjusted and am now often using lower temps in the Zion. Start to finish. I may hold the button on lower temps for 15 or 20 seconds or longer, just puffing away a couple good hits. Take out, quick stir takes seconds. Stick back in, pick up where i left off with minimal heat loss. These lower temps hits really seem to bring the clouds, and barely brown the herb. Good for flavor chasing in a clean stem too.By the way i haven't combusted in the Zion once. The TOD it would happen occasionally, and way too often when i let friends try it. With the Zion you can turn it down low and hold the throttle, with very very minimal chance for the inexperienced user or friend to combust.