They are night & day better than stock. They make shifting effortless but positive engagement feel at the same time. I haven't had any problem with my bolt. I had heard complaints about them coming loose. As far as tighting it up I just cut down an Allen wrench to fit.
If it bowing out between the clamp and bottom of the fork the brake line is still moving inside the tube you added. They side down very easy if not nice and tight but back up not so much. Get the right size clamp or make your own and get rid of tube you added.
We don't understand because we have to many land restrictions to have a race requiring a bike like that in this country. Back east thier's to many people and out west we have Turtles,the Milk Weed,Kangaro Rat and so on and so on.