After lowering the idle timing and main Idle timing table, I did as few Cylinder drop tests with EEHack.
Changing the timing makes changes in the BLM splits anywhere from 5-10 points either way so it obviously makes a difference on fueling depending on what the timing is.

CYLDROP Memo ::
(Higher is better...)
CYL1=26.5 CYL2=27.3
CYL3=26.5 CYL4=27.7
CYL5=27.8 CYL6=29.9
CYL7=32.2 CYL8=31.3
------------------
CYLDROP Memo ::
(Higher is better...)
CYL1=23.4 CYL2=25.2
CYL3=24.7 CYL4=25.3
CYL5=25.1 CYL6=27.4
CYL7=29.5 CYL8=28.7
------------------
CYLDROP Memo ::
(Higher is better...)
CYL1=24.2 CYL2=25.9
CYL3=26.0 CYL4=25.4
CYL5=26.2 CYL6=28.0
CYL7=29.3 CYL8=29.2
------------------
CYLDROP Memo ::
(Higher is better...)
CYL1=23.7 CYL2=23.7
CYL3=23.5 CYL4=23.3
CYL5=23.5 CYL6=26.0
CYL7=27.2 CYL8=25.2
------------------
CYLDROP Memo ::
(Higher is better...)
CYL1=23.5 CYL2=26.7
CYL3=24.8 CYL4=26.5
CYL5=26.2 CYL6=28.3
CYL7=29.2 CYL8=29.9
------------------
The previous adjustment method was to use an IR temp gun which I've found unsatifactory as the middle 2 cylinders always run much hotter than the corners.

I've tried disabling individual cylinders but the BLM's just max out and O2's just flatline.
I've seen Kur4o's updates to alter the individual cylinder trims live but wondered how you'd measure the changes?

Keep doing cylinder drop tests or would raising the BLM ceiling allow the differences to be monitored.

Thoughts anyone

Mitch