Anyone use these preamps? Overall impressions? http://www.bestbassgear.com/basslines-bass-preamps.htm I'm building my first bass and have a set of Duncan Designed JazzMan set if pickups (Warwick). Basically a MM dual HB in bridge position and Jazz @ neck. Would it make sense to go a little higher end on the preamp? http://www.bestbassgear.com/nordstrand-bass-preamps.htm I'm going for a clean but with mid boost bump, if ya get my drift. Not a big woofy bass tone.