Take it we've all seen the modded MX5's look at their back ends, the wheels are splayed out at bottom, in at top, this is camber, and as stated WILL happen if you lower the suspension by ANY amount.. It happens naturally as you load the vehicle, BUT they don't expect it to be this way permanently.. So get the tracking done (4 wheel alignment), as this alters as well due to the different steering arm length dur to the changed angle to the rack, and also get the CAMBER sorted, this uses a different gauge, and also changes the tracking as well!
Camber wears the inside or outside of a tyre, as it dictates which part of the tyres available footprint the vehicle will run on, inside if splay is at bottom, outside if splay is at top..
Tracking scrubs tyres, a bit like ski's, ski's together at back, out at front slowing edge (scrub) is inside edge.. Ski's together at front, out at back, slowing edge (scrub) is outside edge.. Same for your tyres...