You should definitely chain link them 2->3->4->5 Thant way you can grant a new team up -1 for the guy on account 5.

so for instance you get your first group up to 60 this way then you get a second group to 31 you can then grant up 3 level 31s(one on 2, 3, 4) vs just one 31 on the way you originally described.