to those who wish to try the .3-- they do a good job but it takes practice ( who would do that ? ) to avoid breakage. i'm not sure if the hardness of the lead can affect the tendency of the stuff to break.
Never saw the series, but I have a pair of his hiking boots.have you ever watched the series from British BBC TV about your namesake "Doc Martin".
By the way, Doc,
This is off subject but if you have Netflix ( no commercials to interrupt your enjoyment!), have you ever watched the series from British BBC TV about your namesake "Doc Martin".