By Lakshmi.Ezzelin 2010-04-05 12:13:36
In my early days, we didn't have Nereid Rings. No seriously. You'll use Nereid Rings your whole bard career, at least for marches. I own a Heavens Ring, but it just sits in my mog safe collecting dust.
Altering Zanno's example from wiki (which is a misreading of the original Macc testing):
1 Macc = 1 Skill, but CHR can be either 1 Macc or .5 MAcc
So!
Jubbah: at worst 6macc, at best 12macc
Redingote with M.Acc: at worst 6.5macc, at best 9macc
Shadow Coat: 10macc
Choral Jst +1: (on wind) at worst 5macc, at best 10macc; (on string) at worst 11macc, at best 16macc
Nereid Ring: 3macc
To make matters worse, Macc scales differently with different levels of Magic Evasion.
If you want to know what's really going on with the models, at least in a conceptual sense, read some of my blog posts. URL is in my AH character comment.
tl;dr -- Go with the Nereid Rings. They'll be with you well into 75.
I should probably mention that at 75 my everyday debuffing build uses 89 CHR total, five of that from merits. Yeah, you should be fine stacking skill gear.