Feed him as morning now. I would get a test in this cycle just to see what it is with the skip.
He is responding really well to the insulin for a newly diagnosed cat which is great.
Cats often drop lower at night, so always get a before bed test in.
If the before bed test is lower than the preshot number than he will probably drop lower during the night.
So I would be setting the alarm around the lowest point in the cycle (nadir)...looks like his is around +5 or +6 but it can change, and checking him again.
Always check again if you get a lower number because you need to make sure he is on the way back up.
Smoochie could well have dropped quite low last night as he was only at 4 (72) an hour after AMPS.
Are you leaving him out any food overnight?
A lot of us use an automatic feeder which opens at set times and is a great asset for FD cats.
What time do you give the insulin doses? Because you are skipping, this is a good time for you to move it to an earlier time slot if that suits you better.