He seems to often have late nadirs.
When the +3 or +4 drops is lower or the same as PS, that's when he is having the more active cycles, and you probably want to be start looking for a nadir around +8 (sometimes he is later giving you a nadir closer PS)
I think it might be worth experimenting with not loading him with very food early in the cycle, as he appears to be having his onset later in the cycle, around +4, so maybe a teaspoon of food at +3, then check at +4, and give food then.
If you find that the +3/+4 is lower than PS I would take that as a heads up to monitor more closely. (and you may need to steer)
If he is higher at that point you could try leaving him till +6/+7
Giving a snack at that point and checking again at +9 with another snack then just to sustain him through to PS.
As you have been feeding and front loading the cycle a change to the feeding should be monitored closely and it may well be that he settles into a different pattern that he has at them moment, so initially it won't mean more sleep, but if you can get into the swing of it and a pattern emerges, you will know when you can at least grab sleep between his onset and usual nadir.
I've been looking at the cycles since you stopped using the HC regularly, so there is not a lot to go off, that said it is not a new pattern for him.
Bubba was on lantus and a late nadir cat. When his +4 was lower than PS that's when he had the most active cycles. You can see that even though he was on Lantus she didn't feed in the way most of us do.
I don't know what time of day it is for you when you shoot, but depending on how his patterns work out you may want to think about what makes a more sensible shot time for you. So you can fit sleep in.
https://docs.google.com/spreadsheets/u/1/d/1-ldPSg4ZF8LxgTv3Jwm-vNRNOMi86eXmrcodHuLHeEo/pubhtml#
Have a look and see what you think.