Take off yourself for an hour and figure it out. I can't stand riding when something's wrong with my setup. I'll just leave whoever I'm riding with and meet up with them in a few runs...
If you're riding with a stance that used to be comfortable to you, but isn't anymore, I'd have to say it's maybe you and not the stance! If you don't get out much it could just be that your legs aren't in mid-season shape yet.
I don't think thats the problem, i workout 5 days a week and play hockey 3 times a week haha. Valid point though.
you just have to bite the bullet and spend the time making the adjustments or else you'll just be thinking about your setup rather than enjoying the your time riding.
you can also strap in at home on a carpet and just stand around for awhile, bend your knees, squat for awhile....do some ollies, put pressure on your legs...etc and try making some adjustments there. it won't be as telling as if you were on the mountain but if your uncomfortable at home you'll be uncomfortable on the mountain.
Yeah thats what im going to do next time, just take a few runs myself and get everything fixed up.