If I had to guestimate, based on the length of winter this year and my several trips base camping on Cirrus, you shouldn't have trouble locating LT in mid-late June.  Trolling a 20' - 30' tail dancer should be productive.  The pinch between lower and mid cirrus has been productive and around the the island over there.  Also, the north shore of upper and lower cirrus and the south shore of mid cirrus seem more productive than their opposing shorelines.  Both pinch points and the bays in upper cirrus have been consistent LT haunts.  I could email you specifics if you like.