I think the more social networking you have the better in the long run. Right now I only have 11 subscribers and not many followers on twitter but If you build your twitter followers with your youtube subscribers you have an easy way to advertise your new content, and with more subscribers you have a better chance of "trending" or whatever they call it. End results, more people see it. I find it really hard to maintain all the networks I have going right now with so few subscribers, the pay offs are minimal, but eventually it will pay off. Just keep working hard.