Hardeners to use
Amarr Navy - EM / Thermal
Angel - All
Blood - EM / Thermal
Caldary navy - Kinetic / Thermal
Gurista, Mordus, Gallente - Kinetic / Thermal
Khanid - EM / Thermal
Maru - EM / Thermal
Mercenary - EM / Thermal / (Kinetic missiles)
Mordus - Kinetic / thermal
Rogue Pirate - EM / Explosive / kinetic
Odamian - Kin / therm
Sansha - EM / Thermal
Serpentis - Kinetic / Thermal
Zazzmatazz - 2therm / 2kin / 1EM / 1exp
Corpus - Thermal

Multi-modules penalty:
1st mod: c(1) = 100,000% effectiveness
2nd mod: c(2) = 86,912% effect
3d mod: c(3) = 57,104% effect
4th mod: c(4) = 28,247% effect
5th mod: c(5) = 10,599% effect
6th mod: c(6) = 2,999% effect