The information provided by Galaktor about KKK is incorrect. I've tested the effects of "Suppresses Overload" and posted my findings in the main PUP guide thread on page 23.
The weapon affects only Maneuvers and doesn't reduce burden generated by attachments.
You must buy so much gil to buy the same weapon twice just look at these transactions. Xiucoatl is the cheap rute for badwagon pup, nothing beats mythic with flame holder attachment on it.
This weapon falls behind Kenkonken (Pup mythic) by a lot since august 6 attachment update, flame holder (fire attachment that goes as burden when pet uses a WS) out-dps xiucoalt by a lot and you cannot reduce the burden with this gil weapon.