Putting brands aside what are your must have 3 what would be your building blocks? Right now I have 

2 Abu veritias MH 6 "9"

1 6.4:1

1 7.1:1

 

7-foot, heavy action model with a little bit of tip. (A little bit of tip means a soft or fast tip.) 

6-foot, 9-inch medium heavy model with a little more tip action.

7-foot, medium action spinning model with an 80/20 backbone to tip ratio.

Is what I was looking about getting so all I would need is one 7 foot heavy and one spinning set up. Is this enough will the 6 foot 9 be good to crank 10 plus feet? 

If so why are there cranking rods?