It's been a bit of a nightmare for me, I definitely see what you mean that max allowed and/or weight aren't working right. In *some* areas it feels like its at least kinda working, maybe even completely. Also did you happen to notice if damiens atoll spawn point is also affecting the footpaw area? I've never been to herbivore island yet, but the damiens atoll spawner I've set seem to show up either in or around footpaw.
and another thing, my game isn't set for it, but crowds of pteranodons show up at redwood. The only spawners I have left alone completely, are the many that have the words "water" and/or "cave" in the name as it seems obvious what they control, and I don't want to bother with either yet. Not to mention cave spawns (i assume) are still broken in SP