I appreciate the input. I suppose pulling the one currently installed would also give me a chance to mount the tire correctly (yeah, I ended up putting it on backwards last time) and get the directional tread actually running in the right direction for a change, but since I've not noticed it making THAT much of a difference yet, I've said screw it and left it as is.
Ah well, I've got a few other feelers out there so maybe someone who's run these wheels before will chime in in the meantime.