Thanks everyone for all of your comments.
And Gav, thanks for your offer of the instrumental. Unfortunately, I don't have time to go back in and fix this one.
I just grabbed bits of the original Smokey song and looped it. There is also a diy pella of the Smokey layered on top in parts, as I was trying to pump up the vocal.
I know going into the bridge is a bit unsettling. Part of that signature riff is missing. It seemed the only way I could keep the overall timing with that transition.
My mashup results tend to vary because I'm using Ableton Live to pitch and tempo everything, create looped sequences etc. Then I dump everything into Logic 5.5 and edit in there by pushing and pulling the start and end points of regions, create additional loops and add effects.
I'm thinking I could probably get more consistent results if I were to arrange my tunes in Ableton. But, my time is so limited that I never get around to REALLY learning Live properly.

"Maybe in '09" I keep saying to myself!
Thanks for your encouragement. It's much appreciated.