Maya Animation Scaling Issue

I have successfully imported complex Maya animations into Unity but a very simple one is stumping/frustrating me. I am attempting to make a slime/blob squash. In Maya it look pretty good with a simple 3 joint system, then I scale the middle joint and the animation looks good. The problem is when I import to Unity the whole object scales, IE the animation is not the same. I suspect this is due to scaling joints, as I did not do this with previous imports. Is there a workaround?

turn off automatic scale compensation for your bones in maya to get consistent results between maya and unity. You can use constraints to have scale compensation in your rig that actually bakes/exports properly if you really need it.