the corners of pool had an inverted quarter circle which also presented a problem, only because the client wanted to see the same margin of water line around perimeter of pool on semi submerged pool coping.
taking in to consideration that we had to have fall back in to pool anyway the only way was to fix this sections high and then we ground the corner areas down afterwards to get an even line to pool water line .
you cannot see very well the genuine antique jerusalem random reclaimed stone on pool shower walls and feature walls .
we also used antique grey barr for radiused steps to dining area and jacuzzi. to get a good finish we used a needle gun.
area at bottom of waterfall end was random mixture of stones boned to darin without mitres.
all corner pad stones were ground down after fixing as i had an obsession at the time about mitres on corner of copings that i though unsightly.
i now takea slighgtly diffrent view at times as it is so hard to grind and hone stone on site to match finish from factory.