found some more evidences on charisma effect on charm and on feign death breaking charm.....
http://forums.station.sony.com/eq/po...topic_id=62698
psted on that thread :
1. No. Charm break is random. Charm does have a maximum duration, so it is worth setting a timer to the max, but you will very rarely see charm running to full.
2. You are a necro, so FD .
3. You cannot 'refresh' the duration of charm on a charmed mob. Either let it break, or force a break at a good time, and recharm. Both FD and invis will break charm.
4. Things that help you with a charmed pet:
- MR. If you can have it tashed or maloed, charm will last longer.
- snare. Druid/ranger snare is very long lasting, and makes charm breaks easy to handle.
- distance. Never be within melee range of your charmed pet. Use pet guard liberally, and a long way away from you.
- use your pet buffs, get hold of some mage summoned items - and claim them back after killing your pet when he is low. Remember: all damage is good damage.