hey James, is there any difference between west coast Scotland and east coast? Bearing in mind that Aberdeenshire, for example, is on of the driest areas in Britain.
I had to add masses of water surface area to keep my incubator within the recommended range of humidity. I use a max/min and humidity (electronic) measurerer. I live just near Newtyle north of Dundee. Had a good hatch rate.
Will be incubating in may this year...so may try your technique
Emma