From the benchOn the Henrys Fork in low, clear summer flows, presentation beats pattern every time. Position yourself well downstream of rising fish and use a reach cast with 5X or 6X fluorocarbon to lay the fly upstream of the rise form — any drag at all and these fish are done. During the PMD hatch, focus on fish that are locked into a steady rhythm; count their rise interval and time your cast to land 2-3 feet above them just before the next rise. If you're not getting refusals, you're probably not fishing fine enough.