| Merlin sell them - something like £1 for a strip of various sizes. I've often considered getting a Beiter tunnel, purely because I find aiming with circles a lot easier than just a dot - I overaim and concentrate on trying to get it sitting still rather than letting it float. I also find they are more forgiving - if I surround the gold with the ring then even if I'm moving, chances are the centre of the ring is still in the gold. |