I haven't used the Marti Michell, but I have used Ardco templates. IMO, the Ardco are the best you can possibly get. Loved the metal that doesn't move or warp, plus the non-skid backing works perfectly. It was very easy to trace both inside and outside lines against the thin metal. I never found anything that could improve on the Ardco templates. They were one of those pricey items that was worth the cost.