Grest report Polly and some great pictures too. I had a similar cairn 'moment' when I was on Derry Cairngorm last weekend. Very smug at my time to reach the top, only for the clag to lift long enough to unveil the final push to the actual summit
I was all on my own so could hide my blushes
I still have Beinn Dearg to do, and was planning on tacking on the Corbett too when I do it, so might wait until spring perhaps. Always good to read reports from others on the hills to see what I might be up against. This one looks like a good walk, rather than a technical challenge. It's always good to have a few of those types of hills up your sleeve I find