Not tested, but that should work. To my knowledge, if you merge a node with X vis with a smaller node with Y vis, the resultant node will be the same type as the first one (the larger one) , with X + Y/2 vis.On the topic of dark nodes:
If I merge a dark node with a larger pure node, will the resulting node still be pure? Or can only ordinary nodes be 'purified' in this way?
In other words, merging adds about half the capacity of the smaller node to the larger node. I think.