Aluminums, where to start?

[Ratatat]

I'm thinking of trying to work up an aluminum arrow set-up for my td longbow.  Only problem is I have 165 interceptors mounted on 125 adapters and I don't know where to even start.  Bow pulls 70# at my draw and has a FF string.  Arrows can be cut as short as 28".  I would appreciate any advice besides "just shoot carbons".  Thanks

[Shawn Leonard]

A 2419 cut to 28"s may work but that is a lot of weight up front on a aluminum. Shawn