Originally Posted by connloyalist

What I mean is this: If you can play (for example) G above staff (above C above staff) using a tight backbore, will after a while that tight backbore not be sufficient anymore to play that high G and you will need to use an even tighter backbore to get that high G?

A bit like caffeine I guess. If you never drink anything caffeinated, a little bit gives you a real buzz. If you are used to drinking 6 cups of strong black coffee a day, you will need to take something a lot stronger to still get that buzz. You have become habituated to taking that much caffeine.

Regards, Christine