Difficult question to answer, depends on the drop and the car itself. The Zed has limited adjustment available, so even on a small drop, some cars have enough adjustement to bring it back in, some dont. Personally, I would be prepared with a kit to hand when getting alignment done, just in case. They arent that expensive, much better than going through tyres every few thousand miles! If you use a good garage to do the allignment, then if they cant get it within spec they can fit the new bolts and try again.