Hi,
Thank you for the post. I know exactly what your talking about what I used years ago for isometric and architecture drawings.
Got any knowledge on brands? I was planning buying an entire desk that was made for drawing like this one http://www.amazon.com/gp/aw/d/B008BR8KC4/ref=redir_mdp_mobile/182-7028713-7368303
But apparently I can't get it in the U.K.
Thanks
Chris