Well I finally got to use my Montane 200 jacket after two years in the cupboard and two walks in the pack. Now in the pack is the ideal place for it as it gives that secure feeling that you have protective clothing at a light weight. Using it in the real world destroyed that secure feeling along with the jacket

Headed in to Pelion Hut on the Magg 17 track. Light snow was falling that melted on contact with the body so on went the jacket and the MD photon pants. Careful dodging and weaving meant that the jacket emerged unscathed, unlike my fellow walkers light weight jacket that got a triangular tear. Next day was the climb up to East Pelion in a snow and ice bound trek. As for breathability the jacket is ok but not in the Gore-tex league. Piked the final scramble up the citadel due to ice and also the impression that scrambling would destroy the pants and jacket. One the way down scored an icy rock that launched me sideway down mainly onto my Kathmandu 18litre day pack. The packs is light weight itself but the material proved robust and only scuffed on the flat rock that I landed on. Not so the jacket. It tore in two places with the a long tear and sort of triangular tear. The attach photograph gives the best demonstration of this damaged. It appears that the fabric is non rip-stop as the tear was easily extended by a 1mm when examined.
Basically, this very expensive experience confirmed by suspicion that light weight jackets do not belong in the Tassie bush. Lovely to carry but ultimately useless in the real world of Tassie bush. I have taken a few tumbles in my Paddy Pallin Vista coat and suffered no damage to the coat. On the same walk a "traditional" walker came to the ground with a thud with only his pride being hurt and jacket undamaged.
Light weight gear compromises your ability to scramble and can leave you badly exposed when it fails in such a way. Please note, the woollen thermal layer was not damaged and I had no bruise on my arm so absolutely puzzled by the complete failure of the fabric. I know that such an experience and observations as this will upset some UL converts but basically for heading bush in a Tassie winter a traditional strength outer layer is the only real option. Sure the Montane Jacket is the best jacket I have ever carried and stylish as well, just do not wear it in the bush like as with another brand of jacket recently reviewed by a buyer as that is not where it belongs.
Not all bad news as the MD Photon pants stood up well and breathed ok but then again not in the same league as my PP ones so I avoid sliding down icy slopes using my bottom as a breaking device

Cheers Brett