I use the 633, Deva V and a SD 702 for field recording. What I use depends on what I'm doing. The 633 sounds amazing with my Schoeps M/S setup with a DPA 4060 thrown in and the size and weight are great for carrying around. The Deva is heavy but when doing car stuff and surround it can't be beat IMO. Most of the time, if I'm using the Deva, it's on a table or in the cart but I have put in a bag to field surround work.