Are you sure it's Noel playing on Come On (Pt. One)? It sure sounds like Jimi to me, and I had also read or heard it was Jimi on that cut. (Eddie Kramer interview maybe?)
I have played off and on for years in a Jimi cover band and know most of the Hendrix stuff by heart. There are some great bass lines in the Redding catalog, just like Cox has some great stuff. It's common knowledge that Jimi and Chas figured out most of the bass lines and told Noel how to play them. Noel deserves respect in my opinion anyway. His timing was very good.
It's Noel. I have a Ladyland boot that has several takes of them going through "Come On", one of them Jimi breaks a string and they talk about it for a minute.