Does your charger measure IRs? The only way to know the relative health of a LiPo is by the IRs. If your current charger doesn't measure IRs then Id suggesting getting a new one. Something like the HOTA D6 Pro is a good place to start. Id guess the LiPo probably has pretty high IRs. I had some...
Adding adapters adds resistance and takes up more room but if your not pushing your rigs electronics to the max and room isnt an issue then its definitely doable.