Funny you should ask Jeff. I was out on the Duck all day today. Came home and my sit-bones were aching - but NOT my back! Prior to the Heli-Bars, I couldn't ride the Duck more than 45-60 minutes without a backache. So in a word, YES, they work GREAT!! Thanks again!
PS, I may have mentioned this before but when I put in 11:1 pistons, I had to retard my timing 3* and I now use 93 octane, whereas before it was happy with 87. But I don't regret the change!
I'm still sorting out the FCRs - I have two sets (35mm on my Norton and the 41s on the Duck) and both came jetted WAYYYY rich. I'm a little further ahead with the process on the Norton, and so far I have dropped from 152 to 145 mains (and thinking of trying 140s, and moving the 145s to the Duck for an experiment), raised the needle clips 3 slots (from position 5 to position 2), turned out the slow air screws from 1.0 to 1.25 turns, and turned in the slow fuel screw from .75 to .5 turns. And it's still a bit rich! - B
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