I'm all for hp & mp absorb, Armor defense and perhaps HP(armor) options on the IM - those won't imbalance pvp. I'm not sure about dd options, but if the rates aren't too off scale, it's certainly debatable.
Haven't had much time yet to check it all out - hence i'm only lvl 16.
That aside, I'm not one for '100 drops in a minute' - but I wouldn't mind droprates to be a bit higher though. The rate on lowbie armor drops is extremely low atm - how about a guildskill that increases droprates? (just a suggestion). I'm not complaining, however. Been like this back in the old days and lots of us survived.
I also salute you for the 20 allstat like costumes that don't have any major game impact (attack values). I like most of the Isen server up till now.