It's not too bad right now in The Trossachs area, but I'm sure they are lurking. Take heed of wind direction because some of those areas have aspects that will catch breezes other than the strong westerlies. Or try alternate venues like Katrine (good for Northerlies), Laggan (open to Easterlies), Ruthven (open to anything), Farr (similar), Clashfarquar / Cammachmore (east coast so less midgy), etc.