i think they will still put u into your first choice.
my last choice was a JC, and all the other choices ahead was
poly, but i got posted to my first choice in poly.
however, i think that if you put a JC behind a poly course, they
wun allow you to appeal to that JC.
they go by 1st choice--> can --> go -->cannot-->go
see 2nd choice and so on and so forth.