Shape is less important to me than hardness. I like a No. 4 or better for most
fine layout work where a pencil is a better choice than a knife. I've been
getting them from art supply stores.

Cheers,
John

John M. Johnston
“P.S. If you do not receive this, of course it must have been miscarried;
therefore I beg you to write and let me know.” - Sir Boyle Roche,
M.P.------------------------------------------------------------------------