I heard they've lightened them a little: 8.2lbs instead of 8.6, but one source says a 200t is 7.7lbs. I kind of like the mtronic, it gets good power once it gets the tune right. And the 201t can be upgraded to a 7t sprocket instead of 6t.
For "good" cutting, I like the WoodlandPro 12" and Stihl pm chain 3/8lp .50. I use the stock bar for beater duty. I kept the default sizes to reduce variables in my saw collection. Everything I have is either 3/8 or 3/8lp .50, and I make my own chain from reels.
I've been impressed with WoodlandPro bars as a replacement for the consumer bars on small saws. They have a broader nose, and the steel seems to at least equal to the stock bars. Haven't tried their "pro" bars, and likely won't. My big saws are all Stihl, and I like Stihl bars.