I'm finding the sag is pretty much confined to the front area -- right where I want it. The val, however, keeps popping up all over the place. I'll bet you didn't even know there was val in there, did you? You can't really see it, since it's all towards the back, but there's a pretty good grouping in each back corner. I think I might just get rid of them altogether since they're pretty much hidden behind everything else.
29g Eheim Classic 2213, community, heavily planted, 65W CF, 2x Hagen CO2
20g Fluval 3 Plus, nothin' but shrimp & snails, 65W CF, Hagen CO2