Hi mate, the best run in procedure is the one stated in the manual, if you follow that and something goes wrong you have a good leg to stand on with replacing it.
Secondly I recommend using after run after every run, I use around 4drops, it's cheap as chips and you don't get through it that quickly to be honest so definitely worth the money for the added protection.
I can't really comment on the ports, i'm pretty sure less ports means more bottom end, more ports means a better top end but someone else will be able to help you more on that topic.