Yep. I just got out of the sim at a 60% reduction and the trees are still too big. Going to setup a 70% and 80% and test.
Here's what I'm seeing as far as the forests are concerned. Apparently ED's coding is superb. The smaller the trees get, the more of them thier code loads into the forest blocks. So, in effect, by reducing the size of the trees it looks like were gaining trees. Also, the reduction has opened up a little more space between the trees making them look more natural. I can tell you this, at 60% reduction, things are appear to speed by much quicker.
I'll post up a finished mod once I get 70% and 80%. Then folks can choose what suits their tastes. I'm thinking I'll be at 80%. I know that seems nuts, but it's what I think will look right.