If this has been on the boards before I think it needs revisiting. I seem to have this conversation each and every mission, where I have a calmer in the team. The conversation goes like this, as everyone is buffing in the entry room in mission:
Crat: No reflect shields or reflect bracers please
Soldier: huh?
Adventurer: What?
Crat: If you use reflects or brcaers they break my calms, and the adds will be all over us and I can't calm them.
First off I will say that the crat in this team in being a bit extreme. Sure, there are rare occasions where a calmer will cast his calm on a mob, just as that mob is starting his attack on a player. If that player does have a reflect shiled or bracer, then as the newly calmed mob shoots, and then takes the reflect damage, the mob's calm may be broken and the calm will have to be recast.
Big stinking deal, just recast the calm. This may happen two or three times in the entire mission. Besides your best calmers have area calms, and if you can't calm mobs then, maybe you should pick a different profession.
IMHO, it is unreasonable to expect the soldier, and anyone else that wants a reflect shield, to take 25% or more damage from mobs for the entire mission. Also IMO if you find you are continuously having to calm adds, then your team is not "doing it right" hehe. Barging into a new room to kill a mob, without pulling it into a safer "kill room" can bring as many as 5 new adds, form the unexplored new room, and the ajoining rooms. And as anyone knows, calms can get countered by mobs, depending on the mission this could be fairly often.
A soldiers reflect allows him to take up to 30% less damage per hit from mobs, and adventurers damage shields allows them to absorb some damage. Both of these shields also damage the attacker, which is what may break a calm. but only on those rare occasions when the mob is calmed, just as it is begining an attack on a player with a reflect shield or bracer.
I have a level 133 soldier, she teams with a 130ish crat and a 150ish trader. These two guys always ask for her reflect shield, and they never have a problem calming mobs. Sure there is that once or twice per mission that you may nee to recalm, but it is rare.
Now, I will also state that an NT friend of mine swears that NT calms are more adversely affected by reflects in a team, or if he has a reflect cast on him. I have not verified this, but I take him at his word, so i never buff him with reflects.
I guess the bottom line is, don't worry so much about reflects, and do not demand "No reflect shields and take off all bracers". Realize that your tanks need to tank, and you may have to recalm once or twice on a mob. Heck, 95% of the times it's people attacking the calmed targets.
I will say that sometimes the first room can get very tricky with up to 5 or 6 mobs at once, so I might suggest no reflect shields until the adds are calmed in the first room. The calmer tries so hard to calm all those adds, and if they can be calmed, the first room will be a breeze.
Maybe the boss room too, until the lackies are calmed, if you want to take out the boss first. but even there, Ihave gone first with Total Mirror Shield running, all mobs attacking me, and they all get calmed without a problem. some calmers are just better at it then others.