this sounds like you may have built a 3rd.single hand . If so you might consider a wolf triangle taper Line. for Spey style cast. wolf ambush and rio outbound make good lines for Spey style cast. but they are not available in 3wt. please I am not qualified Spey man i have played with a few trying to get the setup that I have. might give Steve Godshal in Medford Oregon .he is a line expert . he understand Spey and switch, top to bottom.