on the horizontal plane - where the subframe would actually be lower than the outer LCA point, you will be fine (and beneficial to handling). Bumpsteer, etc. is mostly caused by that negative angle (which the R&P/tie rod will mimic). If you exceed the horizontal axis (not sure if this is the best way to describe it), then suspension components (bump steer kits, etc.) should be used to correct it, but you still wouldn't be able to correct the roll center without drop spindles (that don't exist) for our cars. So it's best to keep the ride height where the LCA doesn't go negative. Keeping the car stock ride height to get the "best" handling is just silly.
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