P:
Good for you. I can kneel on the stability and do all sort of pulling and pushing with db or cable on it. I can also stand on the stability ball and do bw squats. Try closing your eyes and I becomes even harder to stabilize. When I studied Brazilian
Ju jitsu in nyc the senior students and instructor was amazed of my soild "base" structure for a BJJ novice. In BJJ, their art requires strong stablizing structure and core strength and grip strength.
Many of the BJJ movement is similar to the primary movement patterns I did on the stability ball. E.g., kneeling on the ball which I had a friend hit lightly in many different directions while I was doing like say db curls on the ball. This is much like the mount position and if your do supine leg curls or bridge using the ball, this is like being on bottom position of BJJ.
I can go on about stability ball training. Here is some advice tho, without proper posture or core strength, you will fall plain and simple. In real performance, the environment is usually unstable and it is a good tool to learn how to stablize yourself in a dynamic enviroment. Try to learn about neutral posture and how to correct progress on the ball. You can really do amazing core work on it and do primary movement pattern on it, but many ignorant gym members that I see daily just do crunches and hyper extensions on them. Think outside the box and you can create tons of exercises from stability ball work. Please check out the sources I gave you.
Best of luck.
Mr. Bao
"A gung fu man, then, should be soft-yet not yeilding; firm-yet not hard." Lee Jan Fan