Took few tubes from u few weeks ago. This is my review

Silver: Speed=ok, durability= good
Gold: Speed= a bit fast, durability = not so good
Red: speed = good, durability = not so good.

Summary: Red a little bit disappointed with it's durability. Gold flying too fast. If you are not playing on hard/expert game, i prefer take silver since it's the cheapest and most balance in all aspect