hfss surface repair
Some advice in working with Solidworks and HFSS:
Export your SW models as ACIS, and under ACIS options select version 14. This is the native 3D format that HFSS uses when creating geometry within HFSS. (v14 is the latest version that will import correctly w/ HFSS 10.1, Try to use the latest version that imports correctly for your version of HFSS). While I've found that IGES work just fine, models saved as ACIS dont need to go though a conversion process like IGS and many others will and for large files this saves a little time when importing.
Also the default auto-heal works pretty good, but if your getting mesh errors with any model after its been imported and auto-healed, I would try to simplify it in SW and re-import it as opposed to doing manual healing.
If you want to do optimetrics on an imported part , you'd probably have to put in some creative subtract or other operations?