Hard to tell exactly....are your shrouds REALLY loose? Once the jib is up, you need to pull even harder on the jib halyard to bring the mast forward and tighten the rig. This'll make that jib hang a little prettier, too. If the mast won't rotate, you've tightened too much. Under sail, your leeward shroud will still be pretty loose...that's normal.

Now go and switch those aluminum rivets in that mast base with SS or Monel like their supposed to be!