Asking me to cite sources for what?

For MY OPINION?

I said I prefer "skate Rock Roll Bounce"... I have to provide SOURCES to justify my own personal preference?

All I said was that Vaughan Mason used that sound a year before Roger. This has been confirmed and you admitted that I was right about it (after editing your post like 4 different times as you furiously Googled the info).

So what are the sources for again?

LOL

It's like you're playing tennis without a net.