hey up lads ...can someone just refresh my memory about applying tyrolean ... i know i need to make passes at 45 degree angles , left to right , right to left and then straight on .. do i cover the area with one pass left to right let it go off then go over right to left letting each pass go off before making another or do i complete all passes let the this area go off and then repeat the whole process again thus building up the honeycomb ? ... also what is the lever on a ratchet at the side of the tyrol gun [ i dont mean the handle ] ? ..... many thanks