Hi Charlie

Good idea using the sliding stop ledge/lip, but does not seem very user
friendly if you have to loosen 4 knobs every time you want to clear the
deck.

Of course maybe one will do the job, still it's a clever setup, so you
don't have to catch that falling skew with your shins.

How long before you can start turning wood, life is short, GG

Have fun and take care
Leo Van Der Loo