We’ve been using the Paradigm pump for Eric for a little over a month now and I sure can sympathize with your confusion–I still feel like I’m only just getting the hang of it even after reviewing all their educational info and getting a lot of support from the educator. Treating diabetes requires a different mindset using the pump, it really does! So don’t feel foolish asking questions, the more you learn now before you decide on a pump, the better off you’ll be when it comes to using it.
I don’t know why they told you there’s no “back” button because you CAN back up just by hitting the escape button, up to the point where you give it the order to deliver a bolus. Once the bolus is started you have to suspend the pump to stop it, and that may take some quick thinking on your part… I tried to stop a bolus once after Eric threw up the juice I’d given him and I couldn’t figure out the sequence of button-pushes I needed to do to reach “suspend” before it finished delivery because I was all panicked, but in the end wasn’t able to stop it in time and wound up just giving him more juice and praying he’d keep it down (he did). But, Eric’s boluses are super small and take only a few seconds to deliver, so probably you’d have more time to figure out how to stop it!
As far as continuous glucose monitoring is concerned, my understanding is that the its principal benefit is that you can see what’s going on with your blood glucose in between the times you’d normally test, and that helps you to adjust your basal rate to compensate for the times your body needs less or more insulin (especially at night). If you find yourself having lows at night, this could be a real help toward making sure that doesn’t happen. We can’t have it for Eric’s pump till he’s old enough for it (right now he’s so little, he doesn’t have enough “real estate” on his little bum for both a pump site and a CGM site, and we can’t put them on his belly because he’d pull them off). So I guess the question for you is, do you feel like you have reasonably good control of your blood glucose during the nighttime hours? Do you have problems with lows or highs in that time frame? If so, CGM might be a good idea, especially if you can get insurance coverage for it.
As far as the Animas pump is concerned, wow, that stacking problem would really scare me–you’d have to make a point of only changing the battery in the morning before you’d eaten so that there’d be no boluses on board to lose track of. That would be the only way you could be sure that you’d never have an issue with delivering insulin when you already had some in your system.