But the lip is the same on both plugs......the only difference being the weight. If I had no weight it would roll 180 degrees as you say the water is riding in the cup of the surfster lip causing it to "roll"......but the wdded keel weight subdues the action giving more wiggle and less roll. I guess all I am saying is that there is no "inherent" action in any lip as the action of that lip will be predicated on the plugs design! Ask any 5 builders Sandman's question about any one lip design and you will get 5 different answers is all I am saying. Good discussion though.....I like it! Always love to hear what George's thoughts are!
Threaded Mode