Yeah, I found that adding 0,6 g/l hypo changes the cyan problem to yellow problem . That's why I'm going to do further testing with 0,3 g/l hypo. And thiocyanate could also be tested, I bought it for this purpose.
I like these interesting color palettes. As you say, it works with landscapes quite well. It's probably because it's not always easy to get really green foliage in photographs like in paintings; trees are sometimes quite dark; but the green shadows of Reversal RA-4 print helps this! And again, magenta midtones give a nice warming effect, and finally, highlights in reflections and sky get a nice cyanish look. This is probably the best possible set of crossover problems for a landscape but certainly not for portrait, where you get magenta-brown skin and cyan forehead.