The reasoning behind DFO is for those on the northside to meet up and cruise to the southside location in a group. DFO has easy access straight onto the gateway heading south.
Reasoning behind Yatala is to re-visit the old days (give or take a few years back now) where the majority of us within the cruising scene would cruise down towards yatala, have a pit stop for a few minutes and then make our way back towards brisbane.
At this stage, this may be postpon again as my car isn't running all to well and is in bad need of a tune which wont be happening for another few more weeks due to work.
Of course, someone else is more then welcome to take over the roll/lead of this cruise if they wish.