I've used JT, Dye Hybrid and Empire Grind pants in the past 4 to 5 years. The Dye Hybrids and C6's are both nice pants and are comparable. The Empire Grinds aren't even close to the quality of these 07 Contacts.
I shoot a 2K5'd GZ, Excalibur, FL Viking, Texas Storm, Ripper, Ripper 2 and Ripper 3 Intimidators. I run a Halo or an Empire Reloader B (and now a Pulse) with a PMI Pure Energy or Crossfire Tank.
A nice comfortable fit with solid knee protection.
A bit pricey for what you really get.
I received these pants in December 2006 and have worn them on several occasions. The first thing that struck me as an upgrade from the 05 and 06 Empire line was the comfort of the fit...especially the flexibility in the knee area. I also liked how the Contact's came with adjustment straps on the hips to tighten them firmly to your waist. Unlike some other brands, these straps are designed to hold tightly and snug both in the front and in the small of your back.
The pockets are a bit small however they do their job exceedingly well. I have the camo version and the fabric/material is a high quality and the digi camo works quite well in the overall design. IMHO the design and execution of these pants are better than the comparable ones from Draxxus or Spec Ops.
From the play perspective, the stitching is very tight and solid. The pants held up to some hard slides and only accumulated mud...which is pretty much what they should have done. I would have liked another pocket for a straight squeegie/swab but the overall design is such that I'm happy with the cohesion.
I'm a fan of the Contact pants. They're really a pretty good design. They're baggy without being loose and they're flexible in the right spots. It's a solid design and great execution by Empire. Great for recball/tournaments or woodsball.