The IV just might not be for you. No amp is perfect, and regardless of how many people on these forums love them, the IV is no different. Some days I feel like selling all my amps and starting from scratch, but I've done that so many times and owned so many amps I'm not sure what I'd get. The cabinet makes a huge difference in tone as well. There's nothing wrong at all with finding a tone more suited to you with a fender and gt-8, as long as "your" happy it doesn't matter what anyone else thinks. Just because someone says the IV does it all, doesn't mean it does. If the IV was the perfect amp, more people would own them, and every professional would use them, but they don't. Some of the greatest tones of all time (IMO) didn't come from Mesa's- Clapton, Warren Haynes, Page, etc.... The point is, experiment until you find your perfect tone, it could be from the cheapest preamp on the market or it could be a $5k custom made amp.