Wow..thanks for this info. When next I want to transfer bitcoin to someone, I will try it out. Does this less fee of 0.1sat/Vbyte permanent when you follow the instructions and always implement it in any transaction that you want to send, or when the network is congested, it becomes impossible. However, I know that even though you cannot use the fee lesser than 1sat/vByte, when the network is congested, but will the transaction fee still be lower than the transaction fee of those that just send their coins like that.