I know, I know.. Forever tinkering, but I’m gradually getting there…. I think!.
Still have the 125 mains, one shim and tried to adjust the screws from my guess/starting point at 2 ½ out. Checked the plugs beforehand and one was perfect the other really black, yet the screws were set the same..?
Anyway, I read somewhere that the final setting may be different for each carb and therefore tried to set them on 1dle (1000). I’ve turned them out independently until reaching the best idle (after which point turning further makes little difference). Now one's at 2 ½ the other at 2 ¼ . Is this the right approach?
I know this is basic stuff to you guys but I’ve struggled to find the best setting. Is there a knack to it? Am I missing something or as my other half has pointed out for years, clearly deranged?

More Q’s sorry.
Reading the comments here I think I'd like to try different needles. TBS seems to be the consensus?
Any ideas where I can get these in the UK? Jenks has Thruxton listed, would these be that much different and would they be worth a try over stock on an 865 motor?
Read the thread about throttle position…(Couldn’t agree more). It’s the ¼ to ½ position I’m looking at to be as strong as possible. ½ to full is good.
As ever, your help much appreciated.

Larry