TKO 600 ....Anyone done one?

I spoke to someone at American Powertrain today about Tko 600,s and T-5 5 speeds.
Some really interesting information about both, pro's and cons. The T-5 is smaller and lighter but has the shift rail along the top so there seems to be some question about clearance to the torsion bar mount and shifter position. I'm on the hunt for a core T-5 to try a fittment in the Duster before I order a haevy duty (race modified) T-5. If anybody has any input, fire away. Kev