So whom did play bass for Aurra?

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I was listening to this last night again nearly 30 years after I first heard it on Radio London's Robbie Vincents show and thought, this is it, the 100% perfect jazz-funk 'bass sound' and sublime slap n pop playing, there is a lot going on here when you listern carefully in late at night in bed with the headphones on

...but over the last year or so I have been into bass, I have read that it could have been played any by 1 of 4 players....Raymond Jackson, Steve Arrington, Basil Fearington and of course Buddy Hankerson..the Slave connection complicates things and players came and went...all ending in the letters ON for the conspiracy theorists

any old skool jazz funk historians shed any light on this?