That's proper amounts of time in the circle BUM, I was wondering if "lots of time" could be measured in less than a year cumulatively. Many coworkers (and members of this forum, not to out him but pitchedlink I believe is one) have worked high North for a proper long period of time. One pilot's father is still flying and is what we figure to be the oldest flying commercial helicopter pilot in Canada, still has a medical at 78 I think it was. He's been doing far north work for half a century and you can't keep him south. My grandfather spent a lot of time in the Arctic (air force during the Cold War), also would go back if he could. Member JHC-II has flown for the highest north lodge in Canada (Fred Hamilton's), and I picked Fred up from his floatplane engine failure last year... All those guys same story, itch to go back.. At least that's the way it seems chatting with them, perhaps JHC will catch wind and chime in, his "southern retreat" where he winters and traps is still pushing 60 degrees. He does cheat and hit Africa as others do on the list but I'm digressing...
So to creamysmooth, cleft, and Robert you'll have to forgive me for noting the advice, but continuing to go far north at any opportunity.

I've had a couple tastes and find it spectacular, hope to have a good five or ten up there (speaking from a paltry 58 north at present!) and after that may have formed a decent opinion.