I got the 6004 2pt with Wise. My buddy has the 6pt version. Great machine. We've both had no problems with it over the last 3 years. Another great feature on the 6004 I haven't seen on another machine for the $; the mounting towers move together with the turning knob at either end to center the racket.
I have the Eagnas 3 tooth clamps and it will fit onto the 6004 no problem. I've strung on Babolat machines with the real 3 tooth clamps and I have to admit the Babolat clamps are much nicer. The recent version of the 6004 has the new slimmer 4 tooth clamp I haven't tried.
USPTA P1, 5x Head TGK 237.2, Technifibre NRG2 16, 55LBS
Gamma 2pt 6004 with Wise.