Thread:Kuby101/@comment-173.247.29.183-20130630021737/@comment-4199297-20130713161214

Information from the game's forums: the level of the fusion result is the average of the levels of the two armors being fused. ( 1+1 -> 1, 15+15 -> 15, 1+15 -> 8 )   But because fusing is such a gamble, you could have invested all that leveling into a junk fusion end result... (AKA: fusing level 1s is less risky)

I could add that info to the Fusion Armors or Fusion Master page, but I don't think I could surpress the urge to rewrite half of the content of those pages... -_-;