No I haven't - yet
I am of course painfully aware of the depth of field problems doing macro work, and it would be really good to see a big 3-D object taken with a macro lens in good focus right through its depth (thickness). So I am almost certainly going to try this out.
I have wasted quite a lot of time proving what others have said long ago - it ain't worth working at much above f#22 or you get too many problems from diffraction. Unfortunately I always seem to have to prove things for myself before I believe them - but this one seems to be true.
I think I might already have (free) software on the computer that will handle this but simply haven't got round to looking at it yet. I think it was called CZM. Whatever - it's definitely something to have a go with for sure.
Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.