With the VE and VF V6's, you need to go one level lower in the front as there is less weight in the front of the V6. I recently went through this. I went king springs SSSL in the front and SSL in the rear. I also fitted sachs shortened stuts and shocks. The ride is bloody amazing compared to the stock equipe / berlina suspension. The ride is only slightly firmer on solid bumps, but the height is still very practical. a lot less body roll and IMO my car sits nicely with the 19's Ive got on it. The front looks like it could go lower but I've got 19's and 20's will fill the guards better.
The only time I have scraped is in an undercover car park up ramp that had a little metal speed bump on the peak of the up ramp as it levels out. Not enough room to take it at an angle. The car scraped on the exhaust collectors. This is the lowest point on the VE's. I am contemplating going to an exhaust shop and having the flange join changed to a slip type to get in on or over the 100mm just in case.
I haven't had any attention from the popo and the car looks level enough to me.