Hi, i agree with you of cause !
But lipo pack come from my previous T-Rex 450 Pro 6S... so 0€ cost and nothing to change.
I have already balance connectors 2*3S. I'll use them with bigger capacity pack like Hyperion ones when my current lipo will be dead.
But i just wonder one thing about your 2 packs : it is no too hard to set o-ring or have you changed them to larger ones ???
MSH Mini Prôtos 4S [orderer yellow Goblin 380 with Xnova 2820-890kv]
Blade Nano CP-X BL