Ranger Ec300 Jetting

[Westy]

Hi all, newbie here, just bought a 2019 Ranger, fantastic bike but,
Id like some info on jetting?
Bike is standard, after running in for 400miles.
Main jet 160
Pilot 35
As 1.0
PWK 36 CARB
Needle has been changed to a NEDW, clip 2.
Much better idle to 1/4 throttle opening but it seems to lack a bit up top compared to the stock N1EF needle which was also on clip 2.
The stock needle was really spluttering at small/ part throttle, not smooth at all like my old 4 stroke 250.
Tried a 165 main tonight, and it was missing at wot?
Photo is from a ride on Sunday covering 50 miles of trials and lanes, with new NGK plug, last photo is from stock set-up with a Nippon plug.
I also have an NEDG needle to try?
Any ideas where to start guys? TIA
Sea level, North Devon UK.
Cheers Mark