45-55 for plat and exp solo (nec or enc)

[koros]

I know the Nec vs. Enc debate often comes up as a generic question, but I was wondering if anyone could speak to the speed of nec vs. enc charm soloing 45-55, soloing without charm during those levels, and cash gain from farming/easy camps.

I know the benefits of enc demand in groups, AE groups in the later 50s, and just raw soloing power in the high 50s. But, I'm going to level one of my 30ish alts mostly solo, and I'd like to be able to quickly get 55, make decent cash, and not necessarily be forced to charm solo for good xp.