Summer Tactics - Fishing The Depths At The Lake Of Mentieith. Stillwater Fly Fishing UK. 

This video covers a couple of recent trips to the lake of Menteith, using a variety of methods to catch fish from the depths, but also on a different day showing how I caught fish at 30ft on a di7 line and fish on a floating line.
I was using my 6 & 7 weight Vision Onki fly rods.
Details of the lines used feature in the video.
Cheers
Chris