This is specific for PFS:
I have a lvl 5 elemental bloodlined sorcerer. I wish to make him an archetype. I want to make him crossblooded to the Red Dragon bloodline as well.
According to pg 189 of Ult. Camp. It's 5 days of retraining for every class feature that I wish to change.
By my way of thinking, that's 5 days for getting access to the bloodlined arcana, plus 5 days of getting the class skill, it would take 10 days of retraining.
The GM that is signing off on this agrees with the math above but says that I would also have to spend 10 days more days of retraining because I would now have access to the bloodline powers and bonus spells for a total of 20 days.
Because I am not choosing new spells or new bloodline powers I don't believe I need to spend this amount of time. Since we can't agree, I'm putting this on the boards to see what the majority says.