My single-handed sinktip steelhead consits of a 30' floating shooting head 2 line sizes larger then my rod cut back (from the tip) 8' feet. I then loop (monocore loop) the cut back floating head so that I may fish varying sinktips (13'-18' Type III-VIII) with the line.

The rearend of the floating head is spliced into .028 Rio Powerflex Core floating running line.

This system shoots a good 30'-40' with just one false cast to position the splice just outside of the tip-top.

When I really need extra distance, I strip the spilce right to the rod tip, then perform a Spey cast in which I dump the head in front of me, then (as long as I have a tight line) throw my backcast and let her fly on my forward cast. This waterload casts gives me extra distance with little effort (plus, I can cast upwards of 70-80' with out need for much room behind me).