But all of those are 3-ways right? which means that you would have to use two of them to control a cocker ram. Or you could use a single on and use this
cylinder instead? And I'm not sure the spring has enough force on the return stroke for a nelson. Maybe it has, and in that case, it's much easier to use that one.
EDIT: I actually like the idea of having two SMAV-3. That way I wont have to worry about short stroking and the timing is much easier!