No, they’re some kind of die cast with a gasket. My question was do they lock, apparently there is a lock cylinder hiding behind the handle. Here’s a link to the Buyers site that describes the new handles.
https://www.buyersproducts.com/product/846-ll9000
It’s been a week or so and El Rae does stop on a dime once again (even w/o the pretty girl
)… Can’t really tell a difference so far and have left the adjustable valve all the way open.