Even though you and Sand are taking the piss out of my choice of needle I'm still prepared to help you!I am sad that I did not get any further with my Gasser and I was unable to get rid of the pinging, but on the KTM we achieved a huge improvement.
I have noticed that I can get my engine to ping but only under certain conditions....70MPH at 50% throttle. I don't actually find myself in this situation very often, on the road I normally ride at 60MPH max and that is with 14/48 gearing. (The tall gearing may help me avoid the 'flip' that Sand believes to be inevitable! 🤪 )
I have started to modify a NECK needle so that it is richer from about 40% throttle up to WOT, its tricky to do because I needed to create a good method of being able to take diameter readings at various points along the needle, I've now good a good method, I'm only doing this as an experiment, I'm not suggesting that anyone needs to do this.
The only problem I've got is that I only took a couple of readings from the standard needle, I should have taken 5 readings, I have another NECK needle on order so I can measure that when it arrives.
All of this may be moot anyway once George and JD have their new needle ready.
By the way the NECK needle is leaner on idle, it has a thicker parallel diameter but that does not mean that it is leaner when on the actual taper at 30% to WOT, I will know for sure when my new NECK arrives.