What you are describing is normal for an engine going from cold to hot.
The reason the carb has a choke is because cold engines don’t vaporize fuel as well.
When the engine is cold, it sucks in mix, but not as many droplets of gasoline turn to vapor. So, you are actually a little lean (from the point of view of the combustion chamber) when cold. Hence a choke.
A warm engine flash vaporizes them droplets. That’s where you need a carb tuned right - when it’s at operating temp.
This is the reason people say that a properly tuned carb won’t start without the choke on.
Like I said in the other thread, check out that bing slide mod. It really does make this problem go away with almost no time or effort.
Oh yeah, one more thing. Temps are diff for everyone. Maybe a guy that keeps his ped in an attached (or even heated) garage would never understand this. Or if the person lives somewhere that is always warm. Or even if they are fair weather riders that never start a two stroke in winter.
If you are tuning a frozen engine in February, you will have a much more intimate experience with this issue. Most bikes I have (2T or 4T) need to be ridden the first several blocks with the choke on in cold temps.
Hope that helps (edited)