Switching Physics Series

<p>Hello. I was wondering whether it's a bad idea to switch out of the 1 series and into the 6 series. I ask this because I once withdrew from mechanics, and took it again during the summer to get a B+. Now I just started 1B with gekelman, and I attended Radko's lecture for Math 32B because I heard I would really need the math for a class with Gekelman. I understood nothing of Radko's lecture today, though. It wasn't because of her russian accent or anything either, I just didn't understand the math despite having taken 32A already.</p>

<p>Is this a waste of time or a bad idea? I would be starting 6 series during spring of my sophmore year. Am i too late or anything like that? Can I graduate on time? ETC.</p>