Great data! Here's a couple observations.
I'd remove a degree or two of timing at the upper RPM areas and 1.80g (1800mg) and up aircharge. That knock appears real to me and you definitely don't want that.
Fuel system is definitely maxed out in current config on full E80+ fuel. Your inj pw is getting up there at 17ms and I did see the bypass start to open to bleed some boost. Mixing down to E70 will still give you probably 95-98% of your timing map, and take pressure off the fuel system if you wanna save some bucks on upgraded injectors.
Interesting that your changes did seem to balance out the trims bank1 to bank2. I've noticed on my car that bank1 seems to always have a bit more trim than bank2, usually 2% or so. The fact that the fuel feed comes in to bank2 and crosses over to bank1 likely explains this.
It's been a long time since I studied fluid dynamics, but I seem to remember a single restriction in a given system meant the entire system was restricted to the same degree. Keep in mind there is a venturi and valve in the passenger side saddle that limits fuel pressure to 90(ish) psi on standard Hellcat, and that fuel flows from passenger saddle to driver as part of the pump process. This is one of the reasons it's a bit difficult to siphon the tank as well. If the pumps aren't running this venturi doesn't function so you end up siphoning only the driver saddle unless you key cycle the car a bunch of times, or leave it running, or jumper the pump relay.
On the RE this passenger side venturi/valve setup goes on up to like 110psi if memory serves. However, with more pressure you will start to lose some volume. Finding that balance is where the money is. More isn't necessarily "more" more if you know what I mean.
I've been seeing the highest aircharge I've ever seen lately in my testing at 2000+ mg. I'm seeing around E75 calc'd E and my inj DC is tickling 85% at 6500 RPM. Desired fuel pressure is 94 and actual is 89, so not awful but could likely use some bigger injectors to line it all out. I'll rarely be in 2000+ aircharge type air at WOT, that would be a holy grail day for me at the track, so I'll have to weigh what worth an upgrade, keep my eyes open for some second hand ID1300s or something, and decide then what's what. I definitely couldn't run Ignite E90 in this weather though.
So something happened to a buddy of mine last week. 2018 M6 Hellcat with twin drop in setup using 295 pumps, ID1300 injectors, 2.85 pulley. Claims he filled up with 93 so plenty of fuel, out making a rip in 40 degree air and got a wild hair and took it to 180MPH. Lets off slowing down and a couple seconds later CEL and runs a bit rough. Drove home 80 (!) miles. Pulls plugs and cyl2 are burned up. Bore scope shows broken piston edge as well. No signs of detonation, something just got real hot. Cylinder 2 is passenger front.
Not sure what happened, maybe when he let off after such a hard pull and car went in to DFCO it super heated that cylinder and burned it up.