22 is the standard setting on the standard adjuster, not sure what the equivalent is if you get the upgraded adjusters from BG, I'm on 20 clicks at the moment but keep playing around to find a setting I'm happy with!
There's an adjuster on top of the external reservoir, they're pinned in place from the factory so will need to be de-pinned, i think its clockwise for firm / anti clockwise for soft!
The adjusters are the red bits on top of the reservoirs in this pic:
If they were done by cornering force there should be a dyno sheet provided. Before mucking around count how many clicks back to zero but it may not be the same number. They would have been adjusted to be balanced but not necessarily the same number.
If you count the clicks you should at least have a baseline to work from.
That said when I've tweaked mine it was not a very obvious click so I decided to leave alone.