I have the Blind Moose with KYB shocks. If you like a firm rear, this KYB shock is stiff, no travel. I like it because the rear stays put in the turns. My wife has not complained about the stiff ride so all is well. Check your front shocks also. If the front end is soft, this is going to change the handling a bit. I think that it is desirable to have a firm front end to match the firm rear.
HVDA designed and manufactured this kit originally and later handed it over to Blind Moose. But Herman uses, on his 250, an angle stock brace from the top of the shock tower down to the frame, on an angle, and bolted at both ends. I asked Blind Moose about this angle stock. This is something that you have to fab yourself. I have not done it because I have added weld and gussets on the crossmember at the frame to beef up that weak area. A lot of energy is transmitted to that point.