VHT's seem to have a "churpy" harsh palm mute sound. My Powerball V1 was extremely tight but the palm mutes were very full. It is just the tone of the amp, not how it is played. I don't like how Diezel VH4's sound for the same reason as the UL100, and most VHT's. I eventually sold the Powerball because it was so tight and much later got a 5150. Now I can actually play sludge, and play slow and things sound full. Not hatin, I used to like tight amps too, but my tone has changed a great deal over the years along with my playing style.