Great video I'm still working on this technique as I'm convinced it will work all the time. The fact that I got them to react when I previously thought it was useless tells me there's more to discover with it.Great threads Anthony and I know you do well on the hitch on your local!
As Keirstream mentioned I have had success with it on the lower North Esk and following that on the River Finn. Years ago I had dabbled with it on the Moy town beats and Balisodare and had some success.. but only really got 'the bug' after Morphie. It really is hard to beat seeing the visual take and something nice about fishing light and fancy free if that makes sense, as I find it allows you to fish little spots, pots and runs that are much harder with sunk lines and flies.
Here's a vid from last season that I've posted before but is quite topical: