If your sails are on the port side of the boat, you are on a starboard tack. Yes, use your Port Sheet to adjust your jib. Careful not to oversheet. You kill the air flow to the main by oversheeting the jib.
I have been sailing my 16 for 3 years now, and I think the best way to setup the jib is to tie the top 3 battens fairly loose and put a little arch in the lower batten. I also attach the sheet to the second from the bottom hole on the clew plate. This lets the top of the slot to open some to help prevent backwinding the main. Also, the 16 likes to foot off the wind a little. If you pinch, you get beat up and do not get up wind as fast.
I am not sure what others will say, but I think that it helps the slot to get the main as flat as possible. If the winds are really high and I want to depower, I sheet the jib tight and ease the main out a little; you can see the main back winding, but it takes some of the bite out of the gust; even doing this good boat speed is critical. If you slow too much, the wind wants to push you over instead of forward.
David