Stop taking big drops!
I don't take them that often. maybe once or twice every week or two tops. and i have correct form 99% of the time. i practice on small jumps to make sure i dont mess up.
I measured the couple drops i took, it was about 9-10 onto grass.
also, there is no outside discoloration.
if i had had to make a guess, i would say it was the joint.
but does this sound like something you guys have heard of happening before