Not sure if it's just me, but I've noticed that the lvl 35 daily prospecting quest gives more character exp than the lvl 40 or 45. I mean it's miniscule but yea. Not talking about prospecting exp.
Lvl 35 gave me 7007 exp i believe, lvl 40 around 6.9k , lvl 45 6835 exp.
Not sure if a bug or what.