We're also full swap, but we've done soft as a lead-in on occasion. We don't rule out soft-swap couples, particularly those that say they'd be open to considering full after some time passes.
What we don't like are soft-swap couples that try to "borrow" M only for fmf, saying that their female doesn't "want" or "need" other men...oh, but would M play with their male half?!?! Uhhhh.....NO!
M (the female half)