I do a mix while boosting during RAF, at least.

I don't loot trash until 70. But I run with pass on loot and master looter, so I loot all nameds and assign the BoAs as I go.

Works out well as a middle ground for me, at 70 toons come out with enough money from selling BoAs to buy skills.

I then run 70-80 in LFD and that makes up the money as needed. Mount skills get expensive though...