DW and I value Control over Comfort, so when we want shocks we'll get HD Bilsteins.
The Henderson's Line Up people promote the FSD's and they don't sell higher priced stuff (vs say Bilstein, Monroe, Rancho) to get a couple more bucks. We had an OP who had FSD's installed there and wasn't impressed by the shocks. We don't know what this OP's expectations were, and he hasn't been back. Beyond that, most FSD reviews by our OP's have been favorable.
But me, I'll stick with OFDPOS on this one. He has a lot of automotive experience, and he likes things RIGHT.