Wise words from Ben as usual.
I fish a #4 for most of my fishing hence the reason that I used 3, 4, or 5lb Drennan.
3lb turns over klinks just fine at Haddo. 4lb turns over big bushy wets on a loch and 5lb does it better in a big wind.
These sizes of nylon match well with the shock absorbent characteristics of a #4. I used to have to use 6lb when I had my #7 Loomis and it really sucked at putting out little klinks - it felt more like a wire trace between line and fly. The sunk weighted patterns were fine but not the little dries.
Now for this years Assynt trip, the salty flies will mostly be tied on to 30lb Stren or some such. Flipping over BIG clousers will need big nylon.
I have used double strength and flouro nylon but it is still feckin' expensive and binning a birds nest of flouro makes me cry
I like the way Drennan knots, casts and behaves. I really like the way it turns over my style of flies and at the end of the day, isn't that what it's all about?