I presently use DR Lo-Riders Nickel on my Stingray bass. I've been hearing a bit about S.I.T. strings and I'd like to give them a try (pretty good strings at a right price). However, I don't know which ones might be better for me...Powerwound or Rock Brights. I play rock/metal in the likes of Godsmack, Disturbed, Staind, etc....mostly in tuned down to dropped D. Any suggestions on which strings might be better to sample?