Demultiplexing quality measures for TotalSeq

Hi all,

Has anybody thought of quality measures for sample multiplexing (for example, using TotalSeq hashtags) to measure the performance of the TotalSeq antibodies? E.g. what degrading measure would indicate that the antibodies are getting old (nearing expiry date) and underperforming?

Maybe in the context of the new hashsolo method?

Thanks in advance,