Do you still need multiple proxies with Tubemogul?

If I am going to have multiple YT accounts do I need to use a different proxy for each account or can I just create different accounts and then sign in and upload using Tubemobul or Traffic Geyser? I have a few accounts now but I'm in the process of doing a lot more YT stuff and want to be sure I don't get one account banned and then having every other account blocked because of the same ip.