Wondering if after activating US permanent residency at the border, if anyone has stayed outside the US for more than 6 months, but less than a year - and if there have been issues with that when you return to the US? I know you need a re-entry permit if you're absent for more than a year, but it seems like a grey area when it's between 6 months and a year? We're trying to save up some more money before making the move, but obviously don't want to compromise our status!