Here's my pennies worth
TOO MUCH CAMBER & /OR TO SOFT ON BUMP
The main part of this wear is caused by heavy braking. the front suspension flexes under load, the distance between the top mount to the centre of the wheel decreases as the spring is compressed. so you were probably getting -5 camber under braking and thus at the same time only the inside of the tyre was touching the tarmac, which in turn heats the inside of the tyre up which increases the wear
I would try 2.5 camber and stiffer bumper and rebound settings
