Yep, no shit. There was something about it in a recent classic rock magazine i think or i may have read something online about it after recently listening to the powerstation sessions CD. Originally Jon used some session musicians to record some stuff he was coming up with and a guy called Bill Frank played on the original instrumental version of Runaway. Jon ditched those guys and recorded a demo with a different bunch of guys (Tim Pierce was the guitarist), then Sabo was part of the early line-up just before the self titled album was to be recorded but was ditched in favor of Richie for the recording of the album.