After hearing Percy Jones playing in Brand X when I was younger, I tried to fake his fast flurries of notes by using 3 fingers ... [i](usually in the order of - ring, middle, index)[/i]
...over time, I've kinda got more accurate with it & it's become incorporated into my 'style' ...like these things do...
trying to copy things you've heard that tickle your bass bone, so to speak....perhaps falling a bit short of the mark!.... but what you end up with is your[i] unique[/i] 'style'
Percy Jones has since made a video, with detailed information on how he does what he does ....with his three fingers!
you can see him talking about his right hand technique [url="http://www.youtube.com/watch?v=BCBrSAcrm0M&feature=related"]HERE[/url]
(Check out from about 7.12)
Still a great bass player, in my view [i](although not exactly 'Mr Personality' on this video!)[/i]