yes skeptic....you did misunderstand the 'above post'
I was not advocating the use of a practice pan to simply fix one's position. The practice pan has a specific use (as orionsbelt posted...see the following reference CAP 413 The CAA RT Manual Chap 9 Sect 5).
Incidentally, does anyone know the number of genuine distress/urgency broadcast that have been missed as a result of practce pans etc?