I have to second what Beagle says about joining the URNU, as they do everything the UAS’s will do including the possibility of going flying at one of there camps down in Plymouth.
Secondly most universities have AT and gliding clubs that don’t involve compulsory meetings listening to sometimes times complete drivel on why we should drop everything we worked for and join the regiment as a gunner compare this to the uni clubs where we meet socially during the week and then at the weekend go out an actually do something fun and relaxing - with the knowledge that if we do have a bit too much fun too many times it can’t effect our chances at the time of application to the RAF.
I just can’t see people joining the new UAS system who are not already extremely keen on joining the RAF and therefore apply anyway, thus eliminating the people who firstly may join and be converted to joining the RAF after being lured by the free flying. And secondly, and probably most importantly missing out on the people who will go on to high profile jobs in the civie world, who understand the concepts of the RAF and what it stands for etc etc.