MF makes more expensive lines too, that have much more costly enclosures. I still give them great credit for going the inexpensive route as they have realized that most people have less funds to spend on audio equipment. We benefit and so do they...works for me. And, their equipment generally is...

I have no imbalance on my MKIII but another Chinese head amp (using 12au7s) with the same pot has a right channel that is slow to catch-up with the left channel. I suspect that the pot is really a "Chinese version" of the alps! I have not experienced any significant imbalances with verified Alps...