Interesting. Is it possible that they stuck to the old spot lag of a swap of 1D (i.e. if you enter a swap today, the first period starts in 1D), but the BBSW rate now fixes with a lag of 0? This would, however, imply that the first floating rate is not yet fixed when the you enter into the swap - something that I find unusual but not impossible. Does anybody know for sure?I think it used to be a 1 day rate fixing lag when the reference rate was LIBOR. I think they switched to BBSW with a 0 day rate fixing lag.