Questions about moving up to the $22's on Stars

[JasonRball]

I have moved up through the 5.50s and I am now comfortably 4- tabling the 11s.

What should my bank be for the move to the $22s? $600???
How many $11s should I have under my belt??
What changes can I expect from the change from $11 to $22?

Major change in skill....or minor?? Are there still a good number of donks roaming the rooms?

I am tight player by nature but have learned how to change my play depending on the table and certain situations.

Also this is a part time hobby....looking to grab some extra income.

Thanks