Hey Chris, I am an Engl Powerball user and am considering getting some new speakers for my cab. I tried out some V 30s and they sounded great. I remember a while back you were talking about getting some GreenBacks for your cab. I was just wondering if you ever got them and if so, how do they sound? I have heard of some people combining the V 30s with the GreenBacks in an "X Pattern". What exactly is the advantage of this? I know that tone is subjective but I just thought I'd ak your opinion. Thanks.