Today was a a very enlightening experience. So
@Mrs. 53 and I go into Park City to get ZipFit liners and heaters for our boots. ...Then the alignment... OMG is all I can say. I must have been a cowboy in a previous life. Both of my knees were 3* off outside of neutral. It was an amazing feeling to feel properly lined up, and I can’t begin to imagine how it will make a difference on the slopes.
Concur that 3 degrees is huge. 1/2 or 1 degree off would be a lot more common. So great move, 53. I think you'll be surprised and pleased with how much of a difference it makes.
Basically, the goal of all this is that if you stand on skis with feet an appropriate distance apart, in a natural stance, centered, balanced equally on both feet, the bases of both skis should be flat on the snow. If you ski forward without attempting to turn, both skis should track straight ahead, with no tendency of either one to hook up right or left. So when you get on snow, try doing that first. Just ski straight and parallel down a very gentle slope, to a flat spot that brings you to a stop with no braking by you. See how the skis feel and track. If after a few repetitions things don't feel right, definitely get some more expert feedback. If all is good, I expect you'll find that turns now require minimal effort and feel accurate.
Probably a lot of instructors have no knowledge of alignment. But they should. Giving lessons, I've noted a substantial number of beginners and novices with gross alignment issues. Sadly, it's hard to do much for many of these issues with basic rental equipment. It's a hard thing to tell a first time beginner to go out and buy boots, with expensive customization. It can be very hard to learn on misaligned equipment. This is an area where I expect PSIA has dropped the ball a bit, because their basic texts and training sessions give little or no attention to alignment issues.