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I've just fitted a Hammerhead to my 5500c with Hope Mini's, and it's fine. One downside - it's made out of solid stainless steel, and come in at a hefty 64g. I'm searching for a 4mm x 100mm x 50mm bit of Ti to copy it and make some weight saving.Overall - recommended.
Using Ti will save you xxxg according to my computer models and simulations...Ciao..Hammer.http://www.racing-green.com