Here's small trick with CoronaScatter. Lets say you want to distribute with CScatter some number of instances on certain area as evenly as possible. Usually results are not that good - in some places instances forms clusters, in other places there are large gaps left. That's not exactly what we want. Luckily, there is simple solution now. Set scatter count to relatively large number so instances would cover all area without bigger gaps, now enable strictness and adjust its percentage to desired level. You may fire quick render a few times and watch a instances count under stats tab if you want exact number. Viewport stats also can help :]