The ETL Course does exist and most of my TA PTI's have attended. I believe the course is hosted by the New TA PTI Wing and particularly 49 Brigade.. Send me a PM if you wish to have contact details and personalities!
From what I remember of our ETL course, Sads, you were only there to bring the average age down! definatley not the weight, aside from that, yes it's a handy little course to have, just so's you can help out the PTIs during PT, warm ups/Cool downs & general 'non technical'PT.
Starts off class room work, H&S, caring for feet & so on,but as you can imagine there is also alot of PT work, being shown how to properly warm the squad(you) up, then each of you takes a turn, same with the warm downs, a small amount of running was involved, the risk reduction run type of thing & then practicing speed marches/ CFTs,
I done it about a month ago at aldergrove.. Good course if your intrested and give it your all its pretty good.. I didnt like the placing of markers.. but then again thats down to me not driving and not properly understanding the junctions.. Rectified now...