1. The filter is required for energy star requirements. (Now that I know this, I can't imagine it was causing my system to work harder. Right? I mean energy star requirements are so you use less energy, right? Please correct me if you know something different. This is my understanding.)
2. The big downstairs filter should not be causing trouble for my son's bedroom. Maybe if it's super dirty, but otherwise, no. (This makes sense too, because really? That big filter managed to target my son's room? Why did I allow myself to find this as a logical explanation?)
So, Ryan Homes probably doesn't want ya'll reading my blog and taking out all of your filters willy-nilly, messing up your heating and air systems, and causing problems.
That's all I know for now. I'll keep you updated if I learn anything else.