Yeah, I can sort of sympathize. You get in a certain groove with your treatment and you don’t want to change because that requires giving your disease a whole lot more mindshare for a while. I was that way about pump therapy for a long time because Lantus-Novolog MDI was so life changing after R/N, and most of the time I could coast along without having to think about it too much, whereas pumping looked like it was going to be rubbing my nose in “You’re a Type One!!!” for a while until I got it down. And in fact it did do that for a couple of months, though in the long run it was worth it.
OTOH I had to fight to get onto analog-insulin MDI, which made things so much easier right from the start. Took me a week or so to figure out carb-counting, getting my ratios dialed in and whatnot, but that was relatively easy and the benefit of the change was apparent right from day one. Worst thing about NPH is that it is not a “basal” as most of us understand the term. It has a very distinct peak that can really sneak up on you, and in combination with R for meals–or even, in this case, Humalog–it can set you up for some really scary lows. Of course a CGM might help with that, but the first step would be to switch to Lantus or one of the other analog basals, particularly if he’s gadget averse and doesn’t want to spend a lot of time learning a new system. The thing about the analogs, that I can swear to with great vehemence, is that they make your life so much easier right from the moment you start. (I can still remember sitting at my desk the first week I was on it, the day I decided to try letting the clock tick past my Eat Now! time, until over an hour had gone by and I was still ok. I literally had to close the door to my office because I started weeping with the relief and newfound freedom.