I purchased the L2 EPROM chip and I'm debating whether or not to change my ROM from L5 to L2. If and when I decide to do it, is it just a matter of shutting the game off, pulling the L5 EPROM out and replacing it with the L2 EPROM? Thats it...turn the game back on and the new ROM should just work? If I dont like it, can I just change them over again and be back to L5? Any advice or other steps I need to do to make this swap would be greatly appreciated. Thanks!