I'd like to hear from Blackbird owners who've fitted Helibar riser handlebars to their bikes. How much improvement are they? Do you still get sore arms, backs, wrists, necks and anything else that can get sore from crouching over the tank for long periods of time? Where did you get them? Oz dealers seem to be asking a lot more than Helibar in the US which won't ship to Oz to private dealers. Thanks.