Both are excellent. I prefer the Pit Bull myself, but I've used the Redline before and it is also good.
That having been said, I see a problem using this "One-Man Stand" on the K8:
Watch the video to see this problem. The issue is confirming that the RIGHT spool (as you sit on the bike) is properly engaged in its spool arm before lifting the bike. It looks like a trivial exercise in the vid; but they are using a tiny little Triumph sportbike. On the K8 with stock exhaust, the right bazooka is so huge you would likely not be able to see the right spool (remember, you're standing on the left side of the bike when you use this stand). If you go ahead and lean over to the right to try to see the spool, you are really setting yourself up for the bike falling on its right side.