Seems there is no additional material though..the Trident Sessions were a 'run in' for Mick Taylor. Blood Red Wine, Downtown Suzie, Leather Jacket, Aladdin Story etc..whilst recording You Can't Always Get...Charlie couldn't master the drum part after a verse..no ego and the gent that he is..allowed Jimmy Miller to take the stool and perform said section which to this day the majority of stick work on YCAGWYW is actually Jimmy.
Years ago if cheeky enough the studio man let you into Barnes or Morgan or De Lane Lea..a ten spot often sweetened the deal.