Traditions!
Page 73 has a statement that when you leave a tradition, you may {with DM approval} *restart* the tradition.
I presume this means paying 1,000 XP and gain the rank I abilities and then work your way back up... doesn't this make every tradition 'repeatable'? Take SuperStar Athlete and rake in the money over and over again..
In OLD, assuming this rule translates over, you could make a monster spellcaster by switching back and forth between two casting traditions on the cheap.
Also on that page is a statement that you cannot train-up a skill/ability twice in a row and have to train up another one before coming back. Can this be changes to 'cannot train-up a skill/ability beyond the point of adding a new dice to the pool'? That way you avoid the 4 or more adventure delays in boosting your skill from a 6 to a 10 and getting that 4th dice...