having skid the ar6 (similar to thalls) and the punx last season, the punx are what i would rather go for. they are incredibly light. i found myself checking every once in a while in the lift if they were still on my feet. super buttery too, even at your weight. however i broke the edges quickly. within 2 days i had maybe 10 edge cracks. i didnt manage breaking even one edge on the ARs.
sparknotes if yo want a softer lighter kicker ski, that is good on groomers and has a minimal swing weight, the punx are for you. if you slay rails all day and like going on groomers and a bit of freshies (since theyre non symmetrical) the ar6 would be my weapon of choice.
hope it helped out.