This is kind of the 'sky is falling' kind of thing I was talking about...

Nobody I fly with has a turbine or a plane over 15lbs, let alone 55lbs.

I'm pretty sure none of us have a 100mph+ plane either...I don't think 80% of 'average' rc aircraft are capable of breaking the 100 mph speed limit.

the recommendations said that you could fly within 3 miles of an airport and that there was no restriction for under 2lb 'park flyer' electric planes. (If I remember correctly)

I think the 400' ceiling is perhaps a little unrealistic but it would be hard to enforce and I probably only get above 400' when thermal gliding anyhow.

The proposals may effect a number of specialty types of flying but for the average RC pilot, I don't think it would 'eliminate a good portion of what we are currently able to do' It would pretty much eliminate flying a giant scale turbine at 100+ mph over a local airport. I realize that that is a silly and oversimplified statement but there's also a touch of truth there.