These probably aren't too efficient, but this one string works on most of hakumen's starters non CH. tested on jin, tager and platinum
(4) 214A->41236C->2C->JC->j.B->j.2A->JC->j.C 4393 .5 stars gained
(4) 5C->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 5044 .75 stars gained
(4) 2C(ground)->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 4599 .75 stars gained
(4) 5B->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 4298 .75 stars gained
(4) 2B->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 3785 .5 stars gained
(4) 5A->5B->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 3162 .5 stars gained
(4) 2A->2B->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 3359 .75 stars gained
(4) 6A->5B->214A->41236C->2C->JC->j.B->j.2A->JC->j.C 3510 .75 stars gained
(3) B+C->41236C->2C->JC->j.B->j.2A->JC->j.C 3899 1 star gained