I had an interesting experience this week end. I have a 8/9 wt Redington two hander. I have quite a few lines I can throw with it which work great but I have been experimenting with a 10 wt SA Salmon Steelhead line which is a long belly weight forward line intended for a single hander. The line is one I cut for tips and I had been using a set of 10 foot type III and type VI tips on it for a single hander which casts fine (I cut 75 % of the forward taper off and put on a braided loop). These tips were not casting well on the 8/9 two hander so I decided to make some shorter 6 foot tips and the results were even worse. I have a couple of commercially made tips for an SA 10 wt salt water line which are 15 ft long. I put on the type VII 15 foot tip and to my surprise it cast like a charm, I threw a double spey nice and slow and shot a bunch of line into the forward cast, the line and whole tip rolled out in a nice tight loop and the fly went plunk at the end. It warms my heart Ill tell you.