Board Game Arena

Suppose I am Muuat with a commodity limit of 4 and I play Trade strategy card. It gives me the option to "replenish and 6-commodity swap" with Hacan.

Do I get 6 and Hacan gets 4?

What does x-1 mean in this case - I get 5, and Hacan gets 4?

Too bad. Seems like a lost opportunity. Come to think of it, one could look at player turn order advantage for every game on BGA

I know 1st player advantage for this game has been talked about it.

Seems like there would be good data here with 1000s of games played. Is the data available somewhere?