Just be sure and have some ....
and fish them any way you can think of ... LOL!!
Seriously though ... I use the marabou RR's in solid chartreuse --- I also use custom made ones in solid pink, and in char/teal/char (thanks to Oregon Slabman). Mostly, I cast and retrieve them ... at a moderate rate of speed (fast enough to get the blade spinning, slow enough to keep them in an upright position).
I have trolled with them, with good success, over sandy or pea gravel bottoms ... and even along shallow banks, just over the ends of fallen timber or submerged wood.
I don't go fishing for Crappie ... without Roadrunners :p (or a reasonable facimile, thereof ;) ). I've just put too many Crappie in the boat, on too many different trips, to too many different lakes ... to be foolish enough to not have them !! :D
...... cp :cool: