Mr. Happy & Sheephead both have informative videos about these on youtube. I can't say I agree with those saying there isn't much point to these. Just the fact it joins 8 FC members and it isn't dependent on gear is a plus. Then there is always money to be made for those still wanting an FC house - Making 15k per 8 maps plus several items that can be sold or used in crafting.

I am wondering however, is there a tactic to achieve gold (15myth and 5k gil) or is it random also?