No, I don't bottom out the car or suspension. Tires are 185/60R14
Camber kits are needed any time a civic is lowered for correct alignment, but tire wear doesn't really become an issue until 1.75" drop. Plus a little negative camber is a good thing, a little not a lot. After the car is lowered an alignment is needed to correct the toe. If camber is way off then camber kits should be installed.