I probably should have put more smiley faces and assorted emoticons in the message, I keep forgetting people can't see my grin whilst I type.
Apples to apples, two aircraft of different weight make a standard rate turn at the same airspeed. Both take exactly the same time to do the turn.
Next two identical planes of different weight turn as tightly as they can, the plane with the lower wingloading will turn sharper before stalling.
As I never pylon race, it is all moot to me. Under normal conditions, the frog ain't deaf, he just feels footloose :>) :>) :>)
Regards Fred