It is a good thing that you posted that video. It shows the problem very well. Not enough angle on the cyl.
Do some measuring on the mounting post for the grapple and you might see why the grapple is sticking.
If they were designed wrong, he would have a hard time cutting and replacing them.
You could fix the problem yourself by measuring correctly and cutting off the post and building some new post to mount the grapple.
MS farmer59,
AS far as forgiving someone for sending out a bad product, why would you forgive anyone for that kind of shoddy workmanship.