Bose,
Did I say that he was doing anything illegal? I agree, we have the right to use the airspace to the limits. All I was mearly trying to point out was that there are other altitudes to fly at and if that makes your day more enjoyable because you are not always having to dodge others (or indeed risking a CAS bust), then why not use them? Anyway, my mind is at rest, the lower altitudes are going to remain quiet.