Guiding informally on the Test for a few seasons now, I’ve watched far more casts made to visible, feeding fish than I ever would fishing purely for myself – and it’s changed what I think actually matters about fly presentation.
The single biggest factor in whether a cast gets refused isn’t fly pattern, and it isn’t even accuracy in the way most anglers think of it. It’s drag – the fly moving even slightly unnaturally relative to the current the moment it lands. I’ve watched anglers with beautiful, accurate casts get refusal after refusal because of a few inches of drag they couldn’t see from the bank, and I’ve watched clumsy, slightly-off-target casts with a genuinely drag-free drift get eaten without hesitation.
The second thing I’ve noticed is how much anglers overvalue fly choice relative to presentation. On a difficult day, changing pattern rarely fixes a refusal – changing the cast angle or adding slack to beat drag almost always does more. I’ll often have someone go through four or five fly changes on a fish that was refusing purely because of drag the whole time, and then watch the same fly they started with get eaten the moment the drift is genuinely clean.
None of this is new information if you’ve read enough fly fishing theory. But there’s a difference between knowing it and watching it proven, cast after cast, on real fish that are genuinely deciding whether to eat or not. It’s made me a far more patient and observant angler for my own fishing, not just as a guide.
Sarah Marsh came to fly fishing through her father, who kept a rod on a small syndicate water in Devon. She spent her teens fishing stocked reservoirs and gradually worked her way toward wild fish on moving water – first on rain-fed freestone rivers in Wales, then on the Hampshire chalk streams she now considers home water.
She holds a level 2 APGAI fly casting qualification and guides informally on the River Test and, from June to September, on a private beat on the River Tay for Atlantic salmon. Her personal best brown trout came from the Itchen at 4lb 1oz; she’d sooner not talk about the salmon that came off at the net last August.
At The River Bend, Sarah writes the game fish species guides, fly fishing technique articles, and the legal content covering trout and salmon regulations.
Covers: Brown trout, rainbow trout, sea trout, Atlantic salmon, fly fishing, chalk streams, Scottish rivers, close season and regulation articles