I work at a machine shop so I cape whenever. I usually do a 1.5-1.8 ohm only rebuildables. Don't use stock stuff at all. Here is an example. I've taken my sturm mod with sturm and get through the day until I get home on a 14500 trust fire at 1.7 ohm. I should be fine I assume. WitH an extra battery.
Hey man, if you are good with a 14500 then you will be good with an 18350imr, I love the aw imr 18350, I usually go through 3 batts from morning to night, so while at work I go through one and might start a second. I do not really monitor too much, you just want to swap batts once the hit starts getting wimpy, I am sure you can handle it, its not as hard as people might think, I recently did an experiment with my wife. She just recently started using a mod with imr aw 14500 batts, I was nervous about her overdischarging them so I asked her to give me her battery once she wanted to change to a new one, every time she gave me a batt is was just above 3.55volts so well above what it needed to be. You can just tell when it is going down. I would say that a fully charged batt and a backup is gonna be more than enough for you. Also, once the battery gets old, it is pretty obvious, you will notice that it is not performing for long at all, I am finally having this happen with my 4 batts in rotation, 2 of the 4 are getting really bad and the other two are nowhere near what they were when they were new. When they get like that, its time to get new. I am sorry if this is repetitive of what someone else has said, and I am sure that you know some of this stuff but just trying to be thorough. In closing, the 18350 is a much better batt than the 14500(IMO), you will be pleasantly surprised imo.