I have no experience with their jackets, but I had a Scorpion helmet and gloves and both were nice. The reviews on the Scorpion Yosemite jacket are high, so it might be a winner. As much as I like the Tourmaster Flex II jacket, the outer (windproof, water resistant) shell doesn't vent well at all, so there isn't much "inbetween" from full mesh to windproof mode. There are no chest vents and no rear vents in the Flex II at all. I think on the Flex III they added a little more arm vent and a single horizontal back vent, but still no chest.
Although The Yosemite it has lots of openable zippered mesh areas, it cannot convert to a full mesh jacket, so it would not be as good for hottest summer riding. And it looks very long, which could be a comfort issue (I actually cut 2" off the Flex II's tail because I hated sitting on it). Certainly has a lot of features, although the video info glosses over the armor and padding (which in the Flex is very good) and those are important. I do like that it looks like it has a lot of control over venting options.