Ob2's are cool, Royce who owns OB is a great guy, you can get a good deal if you buy it through TAR email them and tell JCIN I refered you then you will get a better price, tell him I said me and u are friends and he will hook u up, there isn't a lot of profit margin in them anyways but TAR is great guys and they. Are a dealer for Royce at ob.
I will tell you one thing it's a powerful shaft and will take time to adjust to!
Best
Eric