I’ve noticed the same about the Razor. It’s a fun kite to jump with, but does require more flying skill to land with. There are two main things I really like about the Razor. One, like you commented, it really pulls you through turns. Two, it is very stable when parked in one position for surfing.
So, far I’ve had one session on my 8 meter and about 6 sessions on the 12 meter. It would be interesting to see how well the Razor would do in heavier winds with the Freeride bar. I think you could probably extend the top end of the kite a little and make the kite even better behaved in gusty conditions.
Razor keeps you sharp for sure, you take a big jump on the Razor you better be really dialed in, you land fast doing downwind, much more so than the Rise… With the Razor, you can pull your front hand right at the last minute and get a nice boost effect that flattens you out a bit and softens the landing (but speeds it up), with the Rise you can kind of just float down and then keep going. I take the Razor when I’m ‘game on’, and the Rise when I feel like floating around
If you do mostly hooked in tricks go with the Rise, or if you need only 1 kite or 1 really versatile kite.
If you are working on mostly unhooked tricks got with the Razor, or if you can afford a few kites and like to mix up the feel.