My only leaded Paulsons are my beloved Outposts, and I dare not turn them into shuffle stacks for science. With that said, most of them were in VG+ shape, so used, but still stand on edge. And none of them have shown color transfer from normal use. Not even the $20's which is another white/purple combo that I would expect to show something.Obviously some color combinations show color transfer worse than others, but I’m curious - have you seen it in leaded Paulsons? I’ve only seen it in unleaded Paulsons, but this is not based on any useful amount of data.
Could be that leaded don't transfer nearly as much as non-leaded (or at all) ... I guess that's another checkbox for using leaded THCs!