I really loved the hickory taste with this brisket.  I think a 50/50 of oak and hickory would be the ticket.
I am totally thrilled with my SJ mini.  It is very consistent running between 200-250 for 5-6 hours on a minimal amount of KB.  I haven't had any issues yet with the SJS.  The bottom vent never has clogged yet, using the $1 collander .