So I bought a new cycle computer for my allez sport today, nd u wldnt have thought it wld b rocket science to set up would you? well i dnt kno if it was just me, but it took me a considerable amount of time (more than 1.5 hrs) to get the f***ing thing going, and now there is still loads of cable left over (which for now i have wrapped round the chain stay and then taped down). Also the shape of the crank means tht the cadence magnet can easily slip out of place, any advice?