I am having 2 Savi Melody LED lights installed in my pool that is currently being built. The pool is roman shapped, with the side 21 feet long and an extra 2 feet on each end for the rounded bit. So the two LEDs will be placed somewhere in the 21 foot wall. What would be the best spacing option? Obviously, we want them spaced equally separated from the center of the 21 feet - but I just don't know by how much. If I place them so that they cut the pool length in 3 equal spaces (ie. 8.3 feet apart), won't the light in the middle be brighter than the edges? Am I overthinking this?