Using Knees in turn initiation

I think so...well...I do that too, so if it is not "correct", then I am not doing it correctly either....

I agree, there is no real "CORRECT" way to ride....just gotta do what is comfortable and fits you best.

Make sure you use your front foot to lead the way you are turning

i find with my friend who just started boarding that hes scared to ride on his toe side...i first learned by over dramatically jumping from my heel to toes..never stay flat on the ground...always ride on an edge

you turn your hips which involves using your knees. if your even worried about this your way to tense. you just got to relax and carve mindlessly

think of your lead leg/knee as a joystick.  helped me learned to ride switch

it's kind of like trying to walk and think about which foot to go first and where to point your toes. you just making your life harder than it already is. 

I think there is absolutely nothing wrong with trying to understand the mechanics of a sport including snowboarding.  Thinking about small points like using your hip to initiate a turn...your front knee as a steering guide, your toes and heels to rail on turns can all lead to breakthroughs...or whatever pointer that might work for your riding style.  Incidentally there are two primary carving techniques that I am aware of.  One you can keep your upper body generally on a line and allow your lower body to pivot back and forth across that line or you can allow your upper body to move in unison with your lower body.  Neither is correct nor better but I find the use of hip to come into play very much with the former for initiation but not really at all with the latter.  But that is just the sensation I have which can differ from the actual reality...but that is why I do think it can be helpful to play around with different ideas because something might feel right to you and then there you go.