The fisrt time I play Ego Draconis I do the same on the Orobas Fjords like you said and indeed, it's fun and you level-up fast!!
I remember I was 5 levels below the first enemies you meet at the Fjords biggrin

But I don't know if I will do this again next time. It depends on how difficult it will be on "nightmare difficulty" LoL :hihi:

On 7th of february 2015 : I start a new adventure in the Divinity world of Original Sin,
it's a Fantastic Freaking Fabulous Funny ... it's my All Time Favorite One !