I am thinking that the probablity of success (increase in skill) goes down as your ability gets higher... so the 'odds' aren't something fixed Raven.
Yes I think your right, when I started ice magic with my mage it seemed like every time I casted I leveled up. Now it takes much longer. I could be wrong but it seems like first aid seems to build the slowest. This could be me becasue I purchase sigils and don't use those skills as much. Hmm come to think of it this is a negative aspect of purchasing sigils
You don't level your first aid as much and can't heal other players that effectivly. For me maybe first aids probability of leveling should go up to counter act the sigil effect.
Crom: Raven3 Arawn: Raven, Nightingale Sulis: Raven4, Rhianon: Raven5