ApexPC:
A solution is to maintain a ready supply of balls - say 6 or more of the same make/model ball. Then it doesn't matter because you likely won't run out of balls during a round.
A solid solution for someone who uses the same ball all of the time and also has ample credits to always have 2+ sleeves on hand.
There are a lot of WGTers that uses different balls, depending on the game type, who they are playing with, what day of the week it is, which way the wind is blowing, the day of the week ends in a y. So for them, if they have not noted where they stand with each ball they have or don't have the credits to keep ample stock of multiple balls, then it could be a a slight hindrance.
I guess some people don't really buy balls either, they like to use all the free ones they collect from various places and never plan on buying more of that one so they like to know how much they got left on a ball before they start.
Not a huge inconvenience and would much rather have WGT do some other things before it. No matter to me personally since i play the L61 Nike all the time