The reason why there is an 8x8, and a 32x32 is that they join perfectly. If you use the swirl effect on a 32x32 water, it'll turn into 16 8x8 squares of swirl effect. Badspot did this so they'd match, and I'm quite sure that these won't match the water effect on existing water bricks.
Should make water ramps
me must call the magical badspot fairy to magicy fix this