In reply to Stuart the postie:
Re the Tech Machines, I've got them too and love them. So easy to hang off, and they swing beautifully into the ice. The lack of hammer is a problem that does require a solution though and, inspired by a picture that Greg Boswell sent me of his mod, I came up with this:
https://www.flickr.com/photos/66673682@N00/26059296083/
https://www.flickr.com/photos/66673682@N00/26636866896/
I've hammered in a few things with this and can testify to its effectiveness!
Greg had attached a somewhat larger piece of metal in a vaguely similar configuration by replacing the rear/lower blade-retaining bolt with a longer one and using that.
I do miss the adze a bit for clearing crud off potential screw placements, but that's pretty easily done by side-swiping with the head of the axe, and there's the advantage with that method of being able to use either tool. I did not enjoy having to dig through the cornice on Quartvein Scoop with my hands rather than an adze though, it has to be said, but you can still dig a snow bollard just fine without one.
As an alternative, you can get the Mix picks and order hammer and adze separately. However, the angle of the pick is more acute, making them presumably great for steep tooling (not tried it!) but not so nice for ice and general purposes in my view.
I've also climbed grade II-IV routes with these and they work fine for those - though your partners may complain that, with these in hand, you end up taking unnecessarily butch lines on said routes due to the desire to pull hard on steep things! I agree though that more care would be required if using one in a buried axe(s) scenario - as with all curved tools - and, again as with all curved tools, they're very inferior for self-arrest, speaking from hard experience!
Post edited at 21:19