Hi Guys,
I have shot docs on the Red at 4k, but I had an assistant, and a compact zoom. Shooting hand held with the Red is very comparable to shooting on an arri SR -If it is set up the same way. Long Valley Equipment makes a LWS so that you can use the red with 60mm spaced AKS without a base plate. The flat bottom of the camera is just like an SR. Use compact flash cards instead of drives. You get the same amount of time on a 16gig card as you would on a 400' mag. The only real drawback is no fast small zoom exists that I know of, so you are in prime world for available light interiors.
On shooting 2k - I think the Red is comparable to an HDX900 or Varicam in 2k mode. Plus, you have much more room to manipulate the footage in post than you would in the DVCPROHD codec. Also, Red in 2k can shoot up to 120FPS, which the F900, HDX900, and Varicam will not do. The Red footage does not suffer from the compression artifacts and banding that the DVCPROHD footage does. Also, you don't need S-16 lenses, 16mm lenses work fine for 2k. If your final output is TV (HD), 2k is fine.
Do some tests, you may be surprised.
Cheers,
Nick Gardner