Mt Ruapehu is excellent for honing technical skills on short (1–3 pitch) rock, ice and mixed routes, as there is some excellent and very accessible climbing to be had. A bit of a worry though was the lack of long full day missions, turning me into a bit of a drag on bigger Southern Alps climbs, so manufacturing bigger days out on Ruapehu was a bit of a sport in its own right for me.
In the New Zealand Alpine Journal #73, Alastair McDowell outlined his vision of 'trailpinism' when describing his motivation to combine the trail running/fast packing pursuits with alpinism.