The DF layout mat works well and is well made. I use it on every drum I build (25+ so far) and it helps keep the lug locations correct.
By all reports it sounds like the way to go.
I'm wondering if the "free" one from Drummaker - the ones (17" and 14") you have to have a printshop print for you are just as good? They only cost what is will cost you to have it printed out.
What do you think by the looks of them? You have to go to the link above in my post and download (it's a pdf file on that page) it to look. I printed both out - the seem to look good. Mayby the Drum Foundry one is more detailed and that is the one to buy though. But if the Drummaker one is just as good I could be looking at around $20 as opposed to abouit $70 by the time the DF one gets to me here in Canada.