yep, color was the load balancer for me as well.Price wise, Varial is cheaper than CFT but more expensive than XTR. If you factor that you have to get color on XTR (cause it yellows quick), then Varial is only a little more.
re: stretch, the man himself has said infused glass is the way of the future, but he is too old to start messing with it.
another point for varial - you can leave it in your car all day. Not aware of any tech other than soft tops that this is ok.