"I was thinking of getting the T50 5* skis with the M1200 binding, until I read a review that gave the 5* a 2/5 on tracking and 2/5 on forgiveness."
Any ski with a sidecut as dramatic as the T50 5 Star which is skied in short lengths will not track well since the ski will always want to be turning. Also, I wouldn't expect a ski of this caliber to be particularly forgiving since it is designed for expert skiers.
I have been doing all kinds of research on this ski (5 star); pretty much everything short of skiing it since its only the end of September and I live in Boston. I haven't heard anything about the 4 star which is not surprising since it is positioned as a more intermediate level ski which means it won't get much attention around here. I think the best thing for you to do would obviously demo both skis in several lengths and also compare them to other skis in the same category...unfortunately, if you are like me, you have no time to demo and want to decide which pair to buy. I expect that with your size and experience you would be better off with a shorter length of the 5 star than the 4 star. However, I am sure other people with more experience skiing these newer skis than I have can recommend several other skis which would suit you even better than either of these skis for less money.
I have settled on the Supersport 5 stars for this season because as an young ex-racer who grew up skiing straight skis, I want a ski that is versatile and powerful. I am 6'0" 220lbs and so I will probably be getting the 175s or the 182s.
There are a number of posts covering this topic...most notably:http://www.epicski.com/cgi-bin/ultim...c;f=1;t=003095