Nyet, I feel offended that you think I'm stupid enough to swap just one out. I've got a set of brand new k03s lying around, and was planning to check the spring rate manually . Either way, I'll either replace the rod and sync the turbos to 6 psi as DD said, or I'll just try and see if the K03s work as well. Also with sync.
Apologies, no insult intended.
Definitely good to hear you'll make sure they're sync'd up properly. I just worry because I've been down that road and spent way too much time fighting misbehaving wastegates... something you kinda take for granted on single turbo projects...