In reply to DavidR: The first thing that springs to mind in is that the Aztars are pretty damn good axes.
With out knowing about the following it's pretty hard to give any concise advice:
- what leashes are you using; Petzl clipper leashes or fixed leashes?
- what condition are the picks in?
- what crampons do you have?
- what make and how many ice screws do you and your partner have?
- what are your finances like?
- what sort of WI grade are you aspiring to climb?
So in general:
- If you don't have decent B3 boots and technical crampons with vertical front points spend money on them first.
- The same applies to ice screws; buy them first.
As regards the Aztars:
- If the picks are in good nick and you are on fixed leashes consider buying the Petzl clipper leashes. That will give a very useful combination and you won't be at any disadvantage on route around WI4/4+. They'll still be good enough for the occasional harder route.
- If you fancy going leashless and again the picks are fine, consider modifying the Aztar with 'horns' and/or 'triggers'. You can get very respectable leashless performance out of older geometry axes. You would need to be on properly overhanging ice (WI6) before finding them seriously lacking.
New axes:
- X-Monsters. I picked up a pair cheap for about £110 for the pair a few years ago. Great kit that will handle all ice routes easily. They work best with a relaxed and controlled swings so do favour experienced climbers a lot more than other axes. Not the best but close and potentially great value if you can shop around.
- Anarchist, Nomic, Ergo, Fusion, Reactor. You are trading some performance in swing compared with Vipers/Quarks against the (theoretical?) capability to climb mixed test pieces that are way beyond most of us. They are useless for easier mountaineering but they do look super cool. In your case they'd all be great for Rjukan but you might not get much other use out of them.
- New Petzl Quarks. These are SUPERB. The PERFECT tool for Rjukan and big WI5 routes in general. Not much cop on M8 mixed routes but you can't have everything.
- BD Viper. A very close second to the Quark. Equally brilliant and any choice between them is probably down to personal preference.
In the end, you pays your money and you take you chance...
HTH