My husband and I did that to our Droid Charge on Friday. By Sunday night it lagged our phone so bad and drained our battery. We had the exact stuff on our phone before we used the Altered Beast. We even tried to reset the phone back to factory restore and it would not even work at all. It would not even let us do that at all. Off to the Verizon store yesterday and they replaced the phone.
I will not even think about doing any thing to my phone again. I would love to have fast phone and all that you have but I refuse to mess with it again.