Well, I wouldn't say you're crazy, but I had an ESP M302 with EMG HZs in it, which I replaced with Warpigs, and the difference was very noticeable - the tone from the Warpigs was far better.
Is there any possiblity the Warpigs aren't wired in correctly? I only ask because this is exactly what I did - ballsed it up completely if I'm honest, and they didn't sound right. Once they were sorted out, they sounded great.