Originally Posted by Ray-Ban
Really interesting you mentioned that. I knew it was kind of an awkward setup but really never thought about how it affected my address, let alone my rotation during my backswing. I'll definitely address this issue, thank you! Could it be that by keeping my knees inward, it doesn't allow my body to fully rotate through the ball on my downswing, causing the club face to be open on impact? I almost NEVER hit it left!
Welcome to the forum @Ray-Ban ! Mike will give a better answer, but he is traveling today and make take a while to respond.
It will have an effect on both the back and down swings. The fade or slice is caused by the face of the club being open with respect to the path of the club at impact. Does your ball start right and go further right or start left then go right?
Looking at your down the line video, I didn't see a pronounced over the top swing. Flaring the feet and knees as Mike suggested will help you get your weight more forward on the downswing, which will help the path of the club. This may correct too much fade because the path will be more in to out.
Give the set up change a try and start working on it with slow swings as described in the thread below. I'm about the same handicap as you and Erik @iacas and Mike @mvmac have helped me out a lot.
Simple, Specific, Slow, Short, and Success - The Five "S"s of Great Practice