[alalor]

Hello, I don't know if this is the correct forum, I read many pages on this thread, but I can't find the issue I want to know. I have a sprint phone, I read that there is a specific rom for cdma and one specific for gsm. if I flash mine to one of the Energy roms for cdma, can I still use my phone in gsm when I go to other countries?
The roms look great! and I can't wait for my phone to run faster, had it for 2 weeks and in the last two days it started running much slower, even loading sense takes longer. I close programs and it is still slow, I guess typical windows.
Thanks in advance.
Al