I was out today with Michael and Ronan who have plenty of hill walking background and are looking to get the skills to climb some winter gullies.
We headed to Meall nan Tarmachan as parts of Cam Chreag have a Southerly aspect and stood a chance of being relatively scoured. The approach was quite hard with areas of deep snow. Firstly we climbed Cauldron Gully finishing on to the lefthand ridge and looking at snow anchors and belays; turf pegs (Warthogs) and some rock gear. We then descended the easy angled gully from the Meall Garbh/Meall nan Tarmachan col taking the opportunity to build a snow bollard and practice abseiling off it. We then climbed a quick Grade III turf/rock pitch on the left of the descent gully and abseiled from an excellent thread to look at abseiling on a more realistic angle.
Lots of fresh snow on top of the older consolidated snow and it was snowing steadily above 600m as we left. Winds were light Southerlies and snow was accumulating even on Southerly aspects. Skis or snow shoes would definitely have speeded the approach and descent.