I like Ernie Balls, Pro Steels, and Dunlap Super Brights. All decent priced strings IMO. Your punch however regardless of strings will require you to actually sit down for a few hours with your bass and play with mid, treble, and bass, and balance knobs to determine where your bass actually starts to punch. It's well worth the time spent so that on a gig you can get there on the fly and not have to guess. As a matter of fact I spent an hour doing this last night. I have a bass with two quad coil soap bars (Bart) a three way coil splitter and I kept experimenting with the 2 mid freq choices at each switch position adjusting mid volume level, treble, and bass. The goal was to be able to get to that punch no matter what coil position the switch was in. I am currently running Dunlap Super Bright Stainless Steel Strings. One other thing to throw in the mix is where you play on your right hand on the strings. All of this seems like common knowledge but things change when you actually sit down and study your bass and start twiddling knobs, their settings and your hand position.