i was at the gym last night, before i started my workout i went to fill my shaker bottle with water, and you got the ABS and all medicine balls and weight balls in that area, and i heard a trainer say " no with the tip of your fingers"... so i tried to think what the hell he was having some poor client to do that required TIP OF FINGERS only... fuck it, i had to look over and see whats up...
i swear, he had a guy doing walking lunges while holding a yellow weight ball ( i think th eyellow ones are either 5lb or 7lb) . he had the guy have his hands stretched in fron of him,and the ball for some reason had to be on the tip of his fingers... maybe he needed more definition in his fingers 
these guys must have REALLY wild imaginations comping up with this shit, or is there an underground website for these queers that has all these BS excercises?
Strange, Ronnie Coleman doesn't seem to do any "core specific" training (balancing of goofy balls while squatting, fucking around with kettle balls, etc) yet he managed to built a "decent" physique at one time.

Core exercises = People who don't want to lift heavy weight
I'll put heavy deadlifts, front squats, squats...against any core exercise fanatic...and guess what, I'll win.

Shit is a nice gimmick for trainers to keep their clients. Some trainers will use exercises which require 2 people, this way the client will feel they "need" them, to do an efficient routine. It's garbage.
With no training partner or core ball exercises, I've managed to somehow "beat the odds" and make decent gains..haha Who comes up with these bullshit things? Yes, of course, you will hit a few more stabalizing muscles by using a bouncy ball, but you will also lift far more, without that shit. I'll take the extra 100lbs on a squat over a fancy core ball Barnum Bailey balancing act any day.
