I disagree, the last... horrible... time I rode Hulk, after knowing of the roughness it had, I tried basically what you said, (tightened shoulder harness, held on tighter, etc...) but that ended up being unbelievably horrible ride. I had a headache for 3.5 hours. Besides, when on SheiKra, Kraken, and Kumba, I always leave my harness on really loose, to the point where I feel like a rag doll (awesome air-time) with my hands up, and I never feel any roughness from them.