Having said that, the arriving reservist doesn't know how that unit works or the dynamics, and is therefore sticking exactly to the formal path until they are settled...It's probably very much unit specific and driven by command personalities.
Apologies for going off thread but.... some examples;
A keen as mustard reserve JNCO turning up at a regular unit post Chilwell on a HERRICK mobilisation with razor sharp creases, starched MTP and bulled boots that would make a R SIGNALS RD drool, to be told by the regular sergeant major to remove the bull and de-crease MTP as it would show up the lads that were already there.
Another comment in a PXR written by a reservist commenting on a 'lack of professionalism' of the regulars compared to the reserves on the exercise.
Reservist LCpls addressing regular Cpls as 'Corporal' etc etc
I guess generally reservists are mad keen and also when the uniform goes on it's a change from the norm; but it does get a bit Captain Mainwairing at times. Particularly if those in key command roles do not have much leadership or management experience in their day job. It is really not at all like life in a busy regular working unit, and those who mobilise or attach to regular units can find it a bit of a culture shock both ways. Probably one of the benefits (for the most part) in the number of ex regulars now finding themselves in the reserves