When did you join just out of interest?Re chalk and cheese, I don't believe so (if I have understood you correctly): The drop out rate is/was enormous in Depot PARA outside of P Coy. In my Pl fifteen out of about eighty passed basic training first time round. Out of the original starters not that many failed P Coy.
There was still Advanced Wales, BPC, and the final exercise after P Coy in my Pl. No-one failed BPC, but more recruits were backsquadded.
I don't wish to detract at all from those who have done AAPC, but for PARA Reg (rightly or wrongly), they are not regarded as highly as the Reg.