Couple of data points:
1. PH Rare no longer being served in SIN SKL F - discontinued couple weeks back - nobody seems to know if will be reintroduced - it has been by CH NV same as served in SKL J and J cabins on board
2: SQ831 Thu Mar 28 77N (4 seat F) 4 pax 3 x Krug and 5 x Dom loaded