Dear Odd Job Thank you so much for your assistance it was truely appreciated, I've managed to sort it, by using a screwdriver shaft. At first I saw that their were thread in the seat of the housing but noticed that it was stripped, I machined the screwdriver shaft so that it was a fit to a mic. I then drilled a 3 mm vertical hole through the housing, about midway in the casing and pinned it, after 200 shots, going like a bowing. I was worried for not using a slider that the cam cables would shave, keeping the shaft mirror finish seems to solve the problem, for their's still are no signs of friction. As a bonus I came across the sister bow which I camoed for my youngster. PS: Modifying a camcorder triepod for the 6 year old, he is battling with the weight. Planning to hunt from stationary observing points, it might be my solution. Sincerely Camo Joe and Jr