Dan ,When testing go from groomed to ungroomed conditions .Then you''ll see why a straight helix is a must .Agree with Ken...I quick spool tune will allow for more helix(not reverse) I still want to test with mine to see as I have tight trails here, and want to play with my STMs to see how they work together. But do believe a stocker or maybe a 37/35 would work well with orange.
Dan