I bought 6 of their jack blocks shortly before they added the magnets. It really was the only complaint I had as there isn't a lot of room for error with placement to get them centered as the auto level jack come down.

I called to see if it was possible to add the magnets to mine. No problem and their sending the magnets and hardware out to me no charge.

My dad has the Anderson ultimate hitch and had very similar interactions. Top notch customer service!