well, i would assume 20 fcr ammy let you use 2 soj where as 10 fcr ammy can let you use 1.
but i do see the obvious advantage of flexibility:
hoto (40)
GG uber pally circlet 2/20/ber-ber (20)
ammy (20)
arach (20)
trang/magefist (20)
ring (10)
and you have shield free for perhaps stormshield
to reach 75% block
50% dr
max fhr bp
max resist
i think... (i duno if that's what people do, but i imagine it would allow things like that. as hdin with 125/spirit has no major DR source)
coa and verdugo ?
What I think is ideal in pvp
Fcr listing
Spirit 35
Amulet 20
Wizardspike 50
Trang 20
Others
Coa
Dungos/Tgods
x2 bk ring/wisp/dwarf/raven
Spurs/Waterwalks/treks/rare boots
Will give you good resist stacking,sorb, dr, and along +skill balance.
umm thats far from ideal, but i get it now, it has uses in some people's mind.
Some numbers:
arach, 2x bk rings setup: +3 skills, 100 non bo able life, 20 fcr, 9x 20 life scs = 180 bo able life.
verdungo, 2x 10 fcr / 15 dex / 40 life rings: 80 boable life from rings, 90 boable life from the dex you saved, 120 non boable life from verdungo, 15% dr, 3x 40 life pcs = 120 bo able life and +3 palacombat sks and 20 fcr.
Conclusion:
With level 20 bo first setup grants you 445 life, +3 skills, 20 fcr.
2nd setup with 17 level bo: 650 life, +3 pc skills, 20 fcr and 15% dr.
Like said, verdungo setup is superior to arach setup, if you can afford nice rings and palacombats with life.
Your bk ring + arachi and 10fcr rings+dungo comparison is no accurate.
First you did not count ALL boable life gained from 3 bo levels, you need to count pcomb lifers, waterwalker etc.
Second I dont build char around dex ring, if you need to swap rings you are no longer max block.
Third, you count "3x40life pc" in the dungo fomula, what is that?
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dungo+20fcr ammy(most likely crappy mods)
vs
arachi + mara
11 dr 120 non-boable life
vs
1more skill, more stack resist, 3 bo levels on ALL BOABLE LIFE
-----------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------
dungo+20fcr ammy
vs
arachi + godly 10fcr ammy
11 dr some non-boable life
vs
1 more skill, higher life/res due to 2more affix, option to use hoto for +3 bo and +3 hammer/conc
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coa berber + enigma = 39%dr, and dr caps at 50%
so dungo gains 11% dr.
You might want to include 65life from WW and 7-8 45 pcomb lifer/10x 20/5 into the equation, with possible +life from ammy, I am interested to see the result.
anyway I am finished with the original question.