Are out-of-band fee payments to confirm a lightning closing transaction the only way to manage a situation where the sat/kw of a previously signed commitment tx are simply below market?

If additional inputs/outputs could be added, fees could be easily adjusted to the fee rate during channel closing and not at the time when the tx was signed...

  • Hmm... I realize it wouldn't be possible to single sign multiple in/output pairs, which all share the same multisig input, given that the indices between input and output would differ with all pairs except for one. – James C. Dec 24 '18 at 13:40

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