With two hours and pre-spawn fish I would not limit myself to only one lure. With a M or MH, F or XF you could grab a chatterbait/spinnerbait, Senko or Trickworm-wacky or t-rigged weightless, and a jig/craw or t-rigged beaver. If one of those didn't find a fish or two, I would be confident that I had given it a good shot. If I could only have one, fishing my home lake pre-spawn, it would be a white chatterbait.