Tales of a stubby Tailstock

The Colchester Chipmaster Tailstock consists of a base and top casting, the sliding surfaces are worn by about 0,435.  The lateral adjustment is guided by a inverted v slot on the front side, now my plan is to use brass shim stock to raise the total height by 0,435.  a simple way of doing the calculation for the 45deg v slots ( isosceles triangle) is by dividing the required height by the square root of 2 or
1,414213562

This gives 0,30759145mm shim thickness.