Invicta was always a good fly on the Don for me too, especially the silver version in the evenings
The sea trout kelts start feeding again before heading back out to sea. With the unusually early spring this year and large hatches of flies, the kelts will be in much better condition than usual. They will have regained much of their shape, but as they have not returned to sea, they are still technically kelts. Fresh sea trout are much more occasional feeders and this usually only starts after they have been in freshwater for some time. So if you are catching actively feeding sea trout this early in the season, you can virtually guarantee they are kelts.
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