I've lived and fished on the west coast of Scotland all my life. Loch Lomond,Awe,Long,Fyne,Treig,Ossian etc.,and I've never came across a lotion or potion that will stop the dreaded highland midge. The midges up this way are all carrying flick-knives!! Deet,Autan,Jungle Formula, Citronella Oil,Skin-so-soft,local mud etc.....None of them work for me, or my associates. Maybe you've stumbled upon midge-repellent-gold but i'm sceptical!! When the water goes flat calm then cover up and tuck in your midge net! A nice smokey fire gives great relief.
There is a natural limit to any repellant, sitting still by a lough on a summers evening is beyond that limit. To be honest my product has a natural limit, I can garden, mow the lawn, go for a walk, in a evening I will fine wearing midge repel without a net, but sit still next to the stream during the same evening the midge within 10 minutes will find somewhere to bite. I have been bitten wearing deet and nordic summer in the same conditions, and had them getting down clothing or when I put a net on I got a few under the net. There is points if I want to sit still on some evenings I would have to light a fire.