Even the Kamui hard would honestly not be considered as "really hard".
They do play well though. Very similar to the Molavia tip. Both the Kamui & Molavia now seem to be prefered by former Moori users.
Remember too that the design of the ob1 shaft (especially the wood ferrule) will make it "hit" extremely soft...so most all tips will "feel" softer after installed on the ob1.