I have a Sinar P2 and F2. I'll probably leave P2 inside and carry the F2 with me. I have both the Lightware V4000 and the Sinar metal case for the F2. The Lightware may be lighter to carry. And I need some cart to carry the case. I'm open to all suggestions. I know there may be many choices. I'm still not sure if I'd plan to carry the Sinar on a trail or to the mountain. I'll pack one or two more lenses, 5-10 film holder, filter pack and a tripod.