i use the larger size, with the power-ring or whatever they're called.i've never tried walker deeper divers so can't comment.you can convert any rod to a wire rod by changing the tip to a twilli-tip.dipsy hits are hard and neither power pro nor wire has any measurable strech, the snubber goes on the back ofthe dipsy,not the release, and cushions the impact preventing break-offs.i think they are essential with wire and power pro.i have two power pro rigs that i use for high lines and two wire rigs for more depth.both have caught fish.and you'll soon discover you'll want more than two.i used 45 lb power pro, i think it dives a little deeper.hope this helped.