I was working on that for a while. I think it's a logical extension of three and four finger technique. I like that it doesn't emphasize either triplets or quadruple figures. Both are equally hard.

I was doing it timrp (or pimac, as I would write it), but I'm not sure which way is best. I'd still be working on it, but I've just decided to give in and use a pick, since I'm a better pick player already. It seems stupid for me to do it the hard way.
A thing that I like about five fingers is that you could potentially mute every note you play with your plucking hand, rather than only the notes on the same string as the next note like usual. Just be prepared to skip a finger and pluck with the next if the usual one is ending a note on another string. Again, I never got a chance to learn that, since I quit fingers pretty much altogether right after that. I'm a hybrid picker now.