Which total control balls are you using?
I have the same, great for warming up when space is limited.
We also use the 82s - great for a quick BP in a small space...
I use the 74's. Aim small hit small-like shooting at a target.
I have an 82. When I as at Elite Sporting Goods in Lawrenceville, Ga, they had another brand, only in size 74 for $7.95.