Hi Alex
I'm too slow to welcome you to the forum so let me welcome you to Loch Lomond.
As already said, we have
Mistral on Pier 2 of the marina at Ardlui, since April 2003 and had our Leisure 17 on the jetty for 3 years prior to that.
Ardlui is at the 'wrong' end of the loch for a saily boat - the narrow strip of water and the surrounding mountains mean that you spend a lot of time tacking. You might expect that 50% of the time should be downwind but just as when riding a bicycle it doesn't seem to work out that way. Despite that, we like it up there - there are 3 or 4 other yachts other than us which are used on a regular basis.
Keep on eye out for
Wild Goose - I'm fairly sure that she's an Eygthene 24 - though she has a saildrive and I think a single cylinder diesel. She has a mooring off Burnfoot, and used to winter on her trailer at Ardlui next to our Leisure but not for the last few years.
Give me a shout if I can be of any help, or can provide info.
Ash