In reply to abmcn:
I've also use Air Techs with the cramp-o-matic front binding (the bar type) and have used G14's, again cramp-o-matic. Both fit really well but you may have to move the rear attachment forward or backwards depending on how you have it set up now.
I've also tried the Grivel Haute Route bindings on mine and they also fit well. Avoid Petzl apart from maybe the Lynx they are too narrow at the front. I took my ski boots into Joe Browns and tried all the different crampons on before buying my original G14's.
These are my current bindings:
https://www.absolute-snow.co.uk/V/Grivel_Air_Tech_Cramp-O-Matic_Mountaineer...
And if you want one pair to do everything you can buy these to convert back to a newmatic binding for boots that don't have the front welt:
https://shop.epictv.co.uk/en/crampons/grivel/c-o-m-2-nm-bail-x2?sku=GRI15_C...