Some questions :)

[jentanne]

I have a pattern that I really want to do, but it calls for size 6 circular needles and the closest I can find after going to three stores is size 7. How big of a difference will this make in the pattern? Also, I was taught to wrap yarn balls from the inside out, but I saw one of the videos showing a ball you pull from the inside. Is one better than the other? Also, is there a certain size you should make the balls? I have a skein of yarn that is 268 yds. I am thinking this will make a REALLY big yarn ball... would it be better to cut it or something?

Thanks