I have two 5-string bass guitars - same make. One with Ebony and one with Maple fretboard. What strings do you suggest I use on the Ebony and what on the Maple and why? - Should it be stainless steel or nickel, flats, grounds or rounds and why? The strings I nornally use on the Maple are the DR high beams stainless steel and on the Ebony - Elite nickels.