since my feet have been too inline balance was a problem and getting longer stances was not easy, since I've been thinking wider (approximately 1.5 times shoulder width) I believe that they are longer too. I feel more balanced and sturdier, I dare say I still find myself going to narrower stances when I'm not thinking eapecially when pivoting from left to right as in the punch back to gedan barai in kihon kata. I have to deliberately push to gain the wider stance,but feel better for it when I do.