Q: Reducing bottom margin

[jkrajniak]

Question for some more experienced users of this class.
Would it be any problem with setting
top=20mm, bottom=20mm in the settings of geometry package?
I do not want to mess up with the printing but I also do not like to have a large bottom margin (see here: https://www.dropbox.com/s/dm767yh671lj573/orig.png?dl=0)

[wannesm]

I don't think there are any dependencies on the margins. Current geometry settings can be found in adsphd.cls line 509.