Still going through some of the photos I took out at the farm. Tech specs: Canon 40D (F13, 1/250, ISO 100) + a Canon MPE-65mm macro lens (@ 2x) + an MT-24EX macro twin flash (-1 FEC).
Sometimes you just gotta stop and clean your antenna
ps I can get to a tad over 3X by reversing a 50mm f1.8 onto my Nikkor 105mm. I would guess that my working distance and yours are pretty darn close. Now, if I can just find me a lethargic critter to try it out on.