Did the Carn Mairg Circuit from Invervar just north of Loch Tay yesterday. Weather was amazing, almost too hot, but it's a cracking round of hills and on a clear day like yesterday the views are second to none. There was a river just down from the car park that was good for a swim afterwards, if anyone is planning on doing this round in the near future with the good weather still here I'd definitely advise taking a towel and heading down there afterwards.
One thing of note, the walk highlands guide reads
"On leaving the summit retrace your steps briefly; you can either head over the west top or bypass it on the north side to begin the descent down the long ridge on the south side of the Allt Coire a'Chearcaill. There is a clear path down this ridge which has great views of Glen Lyon ahead"
Watch out here, If you head over the west top, this to me on the day read as though you should head S straight after, this is not the case and takes you off on what looks like a ridge but actually isn't, way off track. What you really have to do is head almost NW to find the ridge path, which isn't clear here.