Yeah commissioned work is my job lol, the mechanical clutch pencils have a much larger/wider lead and are far more sturdy than mechanical pencil leads, far more easy to shade with (its almost impossible to shade with a 0.5mm) You can also easily swap the leads in these and they come in all grades, you get 20+ leads for around £6, they have lasted me over a year so far. If you wasn't a request just hit the link to my fb page under my bio and we can take things from there, thanks.