Anyone ever use these for Rock Band 2? I currently have an order from Amazon shipping me the two-cymbal pack upgrade for my RB2 drums. I saw a couple days ago I noticed on Amazon that they had the Logitech drums selling for $60, which seemed like a steal to me, but I'm not sure which way to go. For an extra $30 I could get a whole new drum set which includes the cymbals, but it only has three drum pads and not four.