Mate, I haven't spoken to him since I bumped into him the only time I went to Little Miata's (I think that's what it was called - a little joint in a lane in the city). He was playing in a trio I wasn't familiar with, maybe with Joe on keys. Anyway, the night was a blur 'cause I was drunk and the only thing I remember well was playin' the Thumb Bass; that was that moment, and unfortunately the last time I saw Roger.
As I suggested, it's pretty freaky seeing him speaking on video now; he's changed so much appearance-wise.
The figure you mentioned could well be right; I wouldn't be surprised 'cause LRB sold a Helluva lot of records.