15 resist on 4 pieces is useless. You need at least 250+ to even make a resist set semi useful. 300 is the number you want to hit though.
It is possible to make it work with 4/4 I.R., but to do so you would need the more expensive and hard to obtain gear (Hrotti, num.+1, Cerb mantle, assault breastplate, etc..). If you have the ability to get all of those, Im sure you have the ability to get crimson legs (although some people are incredibly unlucky on that drop), which are considerably better than I.R legs for resists.
Barspells and 15 resist in gear is not going to resist anything worthwhile to make it a point to gear that way. I.R. is great for an MDB build, but not for a full out resist set (unless you have everything you could possible have.)
As far as full time bodies, I prefer Avalon as it has not only great defensive stats, but +13 acc which helps with atonement spam. The +3 enmity is also very nice over Ares imo. But thats just a difference in tanking styles I suppose.
Well I know for Tiamat and Ouryu people tend to get as much resist as possible, but I know that the KS99 Wyrm does not need nearly as much. For that reason I was thinking it was possible to use the IR set for the Enmity and MDB along with resist in all the other slots and still achieve a high enough resist rate.
I can hit 138 Fire resist using 4/4 IR gear, plus 50 from Carol, and plus whatever a WHM with Barspell merits + AF Legs can reach, I'm sure that's plenty for the Wyrm in particular. (No Hrotti but I am fortunate enough to have gotten an Assault Breastplate from a friend that got it from the ENM, and had a Cerberus Bow crafted)
Whenever we do KS99 again I'll try it, but it will probably be several months since we all just burned our seals up in Jan. Edited, Feb 12th 2009 6:17pm by NCCoda