Hey there.
Sounds like great progress!
I think the ignore grid check is fine as I can see this in the CMIP6 documentation.
Excellent.
I just hadn’t seen that before with the copy of the [cylc8] branch.
It’s a very handy feature and I’d certainly recommend moving to Cylc 8 
. I am happy to help out with this transition which will eventually be required anyway.
I wondered if you could help me find a correct EasyAerosol timeslice file?
I’m going to have to refer you to specialist advice elsewhere I’m afraid; I don’t want to recommend something that won’t be scientifically unsuitable. Although I was involved with the creation of ozone ancils for CMIP6 when I worked in NZ, this was quite a while (and several jobs) ago.
FWIW you can always do some nifty find-ing – e.g. in $UMDIR on ARCHER2 – to have a quick look…
> pwd
/work/y07/shared/umshared/ancil
> find . -iname *ozone*|grep -i n96
./atmos/n96e/ozone
./atmos/n96e/ozone/shine_li/v1/qrclim.ozone_L70_O70.xml
./atmos/n96e/ozone/shine_li/v1/qrclim.ozone_L70_O70
./atmos/n96e/ozone/sparc/1994-2005/v2/qrclim.ozone_L70_O70.xml
./atmos/n96e/ozone/sparc/1994-2005/v2/qrclim.ozone_L70_O70
./atmos/n96e/ozone/sparc/1994-2005/v2/qrclim.ozone_L85_O85.xml
./atmos/n96e/ozone/sparc/1994-2005/v2/qrclim.ozone_L85_O85
./atmos/n96e/ozone/sparc/1994-2005/v1/qrclim.ozone_L70_O70
./atmos/n96e/ozone/sparc/1994-2005/v1/qrclim.ozone_L85_O85
./atmos/n96e/ozone/sparc/1994-2005/v3/qrclim.ozone_L85_O85.xml
./atmos/n96e/ozone/sparc/1994-2005/v3/qrclim.ozone_L85_O85
./atmos/n96e/ozone/sparc/1994-2005/v4/qrclim.ozone_L70_O70
./atmos/n96e/ozone/sparc/1994-2005/v5/qrclim.ozone_L70_O70.xml
./atmos/n96e/ozone/sparc/1994-2005/v5/qrclim.ozone_L70_O70
./atmos/n96/ozone
./atmos/n96/ozone/rosenlof/v0/qrclim.ozone_L85_O85
./atmos/n96/ozone/sparc/1994-2005/v1/qrclim.ozone_L70_O70
./atmos/n96/ozone/sparc/1994-2005/v1/qrclim.ozone_L85_O85
./atmos/n96/ozone/sparc/1850_2009/v0/qrclim.ozone_L85_O85
./atmos/n96/ozone/sparc/1994-2005_360/v1/qrclim.ozone_L70_O70
./atmos/n96/ozone/sparc/1994-2005_360/v1/qrclim.ozone_L85_O85
./atmos/GC5/n96e/orca1/ozone
./atmos/GC5/n96e/orca025/ozone
./atmos/GC5/n96e/ozone
./atmos/GC5/n96e/ozone/sparc/1994-2005/v1/qrclim.ozone_L85_O85
Cheers.
Jonny