Hi Frank, I'll let you know about the popping if any when i get a chance for a ride. I'm thinking I won't have much if any though cos I have had these settings before believe it or not but What changed things was my removing the restrictors and as we know, this helps the breathing which in turn may create some popping compared to previous times.
On the other side I've also disconnected the TPS and have a blank cap to tidy that part up, and some believe doing this helps reduce popping. For me I didn't notice any real differences one way or the other to be honest other than looking better and removing another piece of useless wiring.
IMHO though, straight off the bat I'm thinking a shim and 150 mains may be also be a better setting arrangement for you as otherwise I would have done them like yours. I have been wwwwwwwrong ( very hard to say that word :

)
In the meantime, I find one good indicator to determine whether I'm running lean or rich has been fuel consumption and I can tell you thruxton needles ARE thirsty. So if you can or have info on your consumption will help you just as much and maybe even more than plug colour.
I'll be in touch but the next few is forecast for rain so it may take a little time before I jump on Ferdie for a ride.
Cheers stacka