Gul - sorry, I over-simplified. Of course you have DF on many frequencies.
However, many units are not so blessed as yours. Furthermore, I am prepared to bet a month's pay that you cannot triangulate on ANY of your frequencies.
One of the main reasons for permitting Practice Pans, as has been stated time and agin, is to allow the guys at D&D to practice as well.
If people find it's too tiring having to listen to it, then I have lots and lots of sympathy. However, they are far better kept on 121.5 (forget 243 - not many C152's are UHF-equipped) than on a busy APP frequency.