ABC deletes seem to move "system weakness points" to other parts. In my (and another user here, at least) delete put additional load on injectors, causing at least one to go out of spec.

Honestly, I'd recommend just replacing the malfunctioning NoX sensor now and postpone for ABC delete until something big in emissions components starts failing to make it worth spending $ on deleting.

I'd almost recommend the opposite as I'm currently preparing to have the ABC delete done.

After pricing out the cost to replace the upstream NOX sensor. Then hearing it from a number of mechanics stating once the upstream goes the downstream is likely right behind it. Not to mention having a brand new upstream and an old downstream could cause a missmatch in readings..... They essentially all recommended to replace both at the same time. The cost to change both was as much or more than the cost to do the delete.

I should note that I'm also somebody that if I'm going to spend that much money on something, I want it to give me something better than I already have not bring me back to where I was.

You have a point there, but a good used NoX sensor can be had for tiny fraction of new. With so many people performing deletes, these sensors are no longer such a commodity.
Also, I had success ultrasonic-cleaning in one of my NoX sensors last year to restore its functionality.

P.S. Join NABDOG group on Facebook.

While I was struggling to find someone willing to do the labour on the delete I was contemplating buying some used NOX sensors, but the thought of there being no guarantee and maybe the used ones letting go 6 months down the road wouldn't leave my head.