Wow this is the 222 club! My 1987 has the topping lift, which is a fixed wire attached at the rear of the mast head, measured to hold the boom end up. The connection at the boom end is adjustable and should be slacked just a little, so it kind of swings around while sailing. The PO also added a 6" bit of shock cord with a clip at the end of the boom to clip onto the backstay whilst docked.
I am considering adding an adjustable bridle arrangement to the backstay, a few feet above the transom. I believe this will be stronger than the original, will correct the port side offset of the sheet, and.... will allow for a modest spinnaker to be flown from the jib halyard.
While the 222 isn't a fast boat, I feel it performs well and would like to see how we would do on "race night".
As wise Joe says, it's your boat, set it up the way you want!