At one point a month ago I would play a normal CD and then hybrid after hybrid and it would play only the SACD layer. However, now that it has started only playing the CD layer of all my hybrids, I still get a sudden reversion to SACD layer out of the blue. However, I will try your experiment with SACD only discs followed by a hybrid to see if there is a pattern here.
BUT, all this would really be academic if I could CONTROL my own musical destiny!!!!!
Thanks and cheers,
Khalid