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					Originally Posted by  Robert986
					 
				 
				Thanks, great input..  However the question is not really referring to the rules, rather I would like advice concerning my personal safety, is it reasonable to wear a harness if the broom stick passes with eg 2" ?   I understand that there is no exact truth on safety but more advice pro/against. 
			
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Ahhh.... sorry, I hadn't picked-up on that.  
To be frank: In a roll-over, I don't trust the windscreen and frame for a second.  personally.  
I'm not seeing a relationship to the broom-stick rule and a harness.  (I mean, I'm really not sure what you're asking?)
I agree with Lemming: if you largely immobilize your upper body with a harness, then think where that motion is transferred in an impact; yup, your neck.  Exacerbated by the weight of a helmet.  You'll want head & neck restraints.