Yes it works. I usually do a planetary square like this, because if you miss a rep (eg. 17 instead of 18) the work still count.

Perfect, thank you very much! Now it's more clear to me.

Hi to all! I'd like to know how can I interpret the cusp of a house in a certain sign. For example, what kind of effects can brig the cusp of the 2nd house in Capricorn? Can we read it like we have Saturn in the second house ( considering that Saturn is the ruler of capricorn) ? Thank you...