Youtube comment rating proxies

Hey Guys I'm going to buy proxies for youtube comment rating, I have 2 questions.

First of all Should I buy Shared private proxies or Dedicated?

Second, How many accounts can I safely bind to 1 proxy?

thanks mate

So I went ahead and purchased dedicated private proxies and bound 5 accounts to each proxy, First off the comments weren't going up to top comments & after using them for 6 hours, every comment I try to do gets automatically flagged as spam now, that is because the proxies got flagged as spam.

I found a really great method & finding it hard to scale up, I need this running all day to make a decent income but the proxies are limiting me. Any of you have some opinions?

^ I'm not into this anymore, but maybe you should bind max 3-4 accounts per proxy? Tried that?