Thanks for your offer ZedZdeD,
After hours of trying every position of the pedal possible unfortunately still nothing works. With the assembly as it is there is no position that allows the pedal to act on the track in the way that Roger and yourself describe and so I'd really appreciate a photo. Email is firstname.lastname@example.org
I do quite a lot of work on old raceboards (F2, Fanatic, Mistral) and one of the main fixes that I have to do is to the sliding mast track mechanism. Mistrals came nearest to a reliable track on their IMCO One Design, but others are not so good. One weak point with the shorter Phantom is that it only allows three positions for the mast - not good if you want to fine-tune for different wind conditions. With my other boards often an adjustment of a few cm is necessary. The Phantom only offers large steps between positions.