the two balance each other out kongoh is a high output high heat producing gen and the birdie 2 is a low heat high drain booster the upside of this is both parts are relatively light in the weight department making them ideal for lighter mechs the down side would be your en bar bouncing up and down the whole match and so you have to be wary of your en (but if you do get gen busted the recharge cycle would be very short so you are not vulnerable for too long.)
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