[bpape]

You're correct on both of your assumptions re the front corners.

For the 6" thing, all I'm saying is that if you're planning to STRADDLE a corner with 6" of material, you can CHUNK it the same size and same length (height if vertical) with the same amount of material and take up less space - and get better performance.

Just cutting and laying flat and stacking up will accomplish the same thing if you want a square/rectangle instead of triangles - but will take more material - but will perform better too, just takes more space.

Bryan