My request is far from game breaking for this class. Its a simple change, that yes might change your dps but not by 20% because you are also venting heat during the time period in which that extra .5 secs is being casted which in a PvE scenario can be fixed by a slight alteration of priority stats that currently have. Tracer missile is an arcane blast that stacks armor reduction. Thats most simple way to put it. You stack armor reduction to make the rest of your abilities do more damage. In a PvP scenario Yes I agree if you left a Merc sit there and spam TM on you, you should probably go play hello kitty island adventure. But I know from my point of view a healer that isnt much i can do. If I get engaged upon when its a TM specced merc or a grav round specced commando and some other misc dps class i might as well let them kill me because their main hitting dps ability has a faster cast time then my main heal ability. Thats my problem.