...but a lever release is a non-starter -- a disaster waiting to happen, really
What, you think having thousands of dollars in gear swinging from a clamp with a lever release sticking out, just waiting to catch on clothing or a tree branch and send that gear crashing to the ground is a bad idea?!? I wouldn't use a lever-release clamp for a BR+Arca solution even if it were given to me for free...
Exactly why the F-1 plate is so nice. The lever-release Arca is a double jointed setup each with their own failing, just isn't what one would want.