I got some options that I expand using a repeater type field. The values I save for each field is already an array so in essence I'm saving a multi dimentional array per option. (See this weekly trading hours picker http://foxinni.com/screens/trading_hours-20120828-162304.png)
My question is this: Is it better to store the meta values in one meta field as a double serialized value, or is it better to split them into one dimentional values but storing as multiple custom fields with the same name in the db?
Reason I ask is becuase it's easier to manage just one custom field, and as I've come to find, having duplicate meta field ID's as a bit of a pain to manage. Checking the old value to verify the correct field is cumbersome imo..