Symmetry going nuts

[Smurfen]

pictures speak for themselves... happens after applying symmetry looks fine with only meshsmooth

[The IC]

the weld threshold on the symmetry modifier is probably too high...also, you should put symmetry on *before* turbosmooth, otherwise youll end up with a faint ridge down the middle of the model

[Smurfen]

turning threshold down helped.. it was still weird tho.. never had an issue with it

[crazy 989]

depends on the size you've set your units etc, and your model size