different strains as galacians (the famous "don leney" carp) dinks, italians, auschegrund(sp?), frame, royalle....
look at a leney, then an italian. they woulb both feed totally differently on the bottom. an auschegrund (like mangroves "scaley") would probably find it easier to feed on the side of a bar or steep margin than an italian.
because of the body shape and mouth positionrigs would(?) need to be different. that may be why certain fish just dont get caught...the going rig is totally wrong for them.....