I didn't read all of it...got his drift early on. The most interesting bit for me was part 2 when he mentioned "Tay/Tummel Style". This Tay/Tummel technique is what many of us call a "Perry Poke", the double spey version requires a bit extra concentration but works very well, and it doesn't have to become a triple spey. But really, there is water that short heads are good on as in deep pools but there is alot MORE water that doesn't demand sinking deep quickly, if at all. Gonna be the naysayer here, figure out how to get deep without a shooting head and you win, fewer loops, minimal stripping and covering more water (fly in the water). Most anadromous salmonids hold in many different types of water, hydraulics make it so.