OP_CSV require that the transaction spending this UTXO could have nSequence equal or better that the worth within the OP_CSV.
So if the UTXO with the OP_CSV created 100 blocks in the past, and set the relative timelock for less than 20 blocks, and now I wish to spend this UTXO, I have to set the nSequence to twenty blocks, so ultimately the timelock might be 120 blocks.
Is it appropriate?
If sure, it implies that more often than not the relative timelock is greater than the worth set, except you spent the UTXO within the very subsequent block after it was created.
