Actually, my point was you should start in Limited to get your feet wet, then "move up" to Production
There's no such thing as moving up a Division. Divisions only recognize different equipment platforms and related rules. Classes are what you move up in: U, D, C, B, A, Master, Grand Master.
The reason many suggest Limited to start is because you are less likely to run afoul of some restrictive equipment rules in Production, such as holster or Mag pouches in the wrong place, one too many rounds in a mag, etc. It also takes the stress off you in planning repeated mag changes for a long course stage. Generally, there is less to worry about when shooting in Limited, so you can concentrate on the fundamentals, safety, and learning how matches run. Once you get all that worked out, and are ready to really start competing, bring your 525 into Production and tear up the competition where EVERYONE is scored as minor.