I was given my board as a present a year ago. It is a Mens Forum Youngblood 148. It had seemed a little big but the guy at the local sports shop "detuned it" and it doesnt seem as big. I am a girl and am 5'4" and weigh 130. I have been riding it okay until the other day someone was mentioning how wide stances put too much stress on your knees and make you prone to injury. Do you think the stance is too wide for me? Here is the info for my board.