Hi Adam,
If you look at the St Croix, G Loomis, and Fenwick website they are all pretty consistent with this application which is a medium weight, fast or extra fact, in the 6'6" to 6'8" range.
These rods also work great as a lighter jerk bait, drop shot, or shaky-head bass rig. IN addition, a medium weight jig (1/4 - 1/2 oz) jig or snap-jig rod for walleye.
I use a vintage Fenwick Goldenwing (6'6", med, fast) spinning rod w/8lb mono for this with good results.