As a student with 20 or so hours there is no way my calls are perfect 100% of the time but heres why I try and make them so;
- I hate nothing more than waiting on Downwind to transmit the short 'XXX, Downwind, touch and go' while someone gasses on, it also makes the circuit more stressful, I don't want to put others in the position.
- Others are expecting to hear the standards if you do something else it throws other pilots.
- Most people judge other pilot's competencies by their radio calls. You don't want your fellow pilots to think your **** do you?
- I take pride in what I do, and I want to do it to the best of my abilities
If those four things (especially the third and fourth) don't make you want to get your calls right; well maybe you should have a think about why your spending $200 an hour!