There's a dramatic difference in the way different airports handle the "rules" of Ryanair.
Some won't really care about the handluggage, others do(PIK).
Some airports don't mind if you're bag is a few kg's over 15, some do(GRO)
Some airports don't mind if the name doesn't exactly match, some do(NYO)
The airports I mentioned are based on what i've seen as a passenger and don't have to reflect the reality.