Landmarks and Mayor Rating

[grbac80 5]

What my question is, can Sims(in Sim City 4 of course) get used to landmarks effect?

Here is what happened. Well I'm pretty new to all this custom content, so while building my city I wanted to grow some residentials and commercials in a city block. They grew(I used DT's mod) and there was some space left where they wouldn't want to grow no matter how long I waited.... So I started plopping landmarks of these same set... I played and then I discovered the Extra Cheats and that commercials if plopped work properly. So I demolished my landmarks(all custom) and started plopping these commercial. And then I hit play... Mayor rating in just less than a year came to -60(rate of some -15). I'm sure of that because I did a lot of tests to prove that. I demolished then the commercials and plopped back the landmark version  and the mayor rating went up with approximately the same rate.
Has anyone had the same problem. Could it be that problem lies in the custom content set, even though the sc4tool reports the landmark effect is pretty much the same as in other lots.