What Chris said on the stave press,mine lasted less than a year,messed up
during the Classic, treat it right it should last forever.
Wedging the plate to keep it somewhat level is important,I even had wedges cut and hung all around the post it was mounted on to use for different size and shape staves,just folks don't take the time to use them or just don't know any better.
either way they won't hold up long if miss treated.
Pappy