How bad and flubby are channels 3&4 on the early Tourmaster that do not have the "M" at the end of the serial #.The mod to tighten up the low end. I do not play Metal.
Based on a try at guitar center, the low end was pretty loose, not horrible, but definetally on the spongy side as compared to others, but If you are not doing chugga chugga, I think it would be fine. With palm mutes and the need for a tight rythm, it was a no go.
we used it in church in a very reverberant sanctuary and it was not such a great thing.
John w/egnater helped us and My tech did it for about $40.00. it was well worth it afterwards.