"May" means, it is optional, whether I want to make use of the hand size increase or not, right?His controlling player may keep one more card than normal in his hand.
When do I decide, that I want to have one more card? do I need to stick to a decision for the whole game, once it is made? Or may I change, like: at the end of the m/h phase of company 1 I decide to have 9 cards, at the end of the m/h phase of company 2 I decide to have only 8 cards.
This could help to draw some more cards when squatting companies are involved.