What is the methodology for promoting players?

I received mail talking of players who should be promoted? It is not specific as to when

I had heard that it is during playoff is when players should be promoted?

Any advice is appreciated

Most agree with this post: Late Season Promotion

Yeah, MiLB playoffs definitely squeezes an extra rating or two out of players. I try to stack all my stud prospects on AA so that the team has a better shot at a deep playoff run. Then once the seasons is over and the ML playoff are in the LCS, I promote them to AAA to see the ratings bump get recorded. The following pre-season I'll demote whoever isn't coming up to the bigs back down to AA and start all over.

@brianplath - You don't see a ratings drop when you demote them during preseason?

No ratings drop in preseason if you do it before the Rule 5 draft. Or more specifically, before the Rule 5 roster freeze.

How many games does a player need to play at each level to get a ratings boost?

ie. I draft a player who projects as a good ML hitter and based on current ratings could play in High A.

Am I better off starting him in rookie ball for a few games and promoting him to low A and then doing same and promoting him to High A or just start him off and play him straight through in High A? I recognize coaching may affect this too and as you'd expect my High A coaches are better than my rookie ball coaches.

I went ahead and put him in rookie ball for now but looking to promote him to high A as soon as I get one cycle of progress. Hope that is the right way to do it!