No, not too much it's just the general feel and ear for chord melody that I hear in Casey Bill that reminds me of SW and vice versa. Something in the rhythm also.
The second chord SW plays in Steel Guitar Rag is a good example, that's the whole song right there pretty much, I love it. It was pretty influential, certainly in W.Swing to this day.
Probably safe to bet that Curley Weaver influenced Casey Bill and the jazzy blues players more than Sylvester though.
Were Sylvester and Curley related in any way? I don't recall, not my area of expertise.
