I would also like to add that for airfields outside of the limited or no fly zone I still don't think it will be a problem, even the 400'. Seriously, how are they going to know, the average pilot don't even know. The FAA said model aircraft will not be required to have an onboard transponder thingy so how will anyone know. And for those clubs that have that one butt wipe that would threaten to call on someone, vote and kick them out, they are trouble makers anyway trying to dictate their beliefs on others.
I have a pasture behind my house and fly here often, there is no way anyone can show that I am flying outside of the 8 rules, including the ceiling. I don't have to worry about those close to me as they usually pull out a lawn chair and watch. I have even had a couple of those motorized paraglider thingies hang around behind my flight line watching which means even they know where and how I fly. Only problem is when I hear them coming I land. One came down the runway one day and yelled take her up. Don't think he heard me yell not while your there.
Point is, 99% of the populous don't give a rats petunia about us including the FAA.
So, be smart, fly safe, yield the right of way, and stay the hell away from people and structures. Our hobby may very well depend on it.