Exactly right. The most un-professional use of Guard is the en-route guys whining to D&D about someone carrying out a practise PAN. The simple fact is that at the moment conducting practices on 121.5MHz is perfectly legal and is encouraged by CAA, D&D and a huge majority of the GA community. However, a Practise Emergency Training Frequency (PETF) for VHF is an excellent idea and would solve a lot of problems. Yes there are issues with pilots forgetting the actual Guard frequency when they're flapping in an emergency, but that is a training issue and should be easily addressed. It works fine on UHF, so why not? As I've mentioned before though, nothing will happen until the en-route guys and the GA community start putting pressue on the CAA to provide the frequency. Bare in mind as well that the frequency will have to be mated up with the kit in the D&D cells which will require a lot more investment.