That is a repeat bloom WBW but one I haven't posted pics of, I'll be sure to get good ones this year. You're welcome to pollen if you see anything you like, my plants had a bit of an off year last season with me working so much overtime so I don't plan to push them with breeding. That is a haynaldianum in the back, same one I posted recently on your thread.
My rockwool mix is about 1:1 and holds a good amount of moisture but it is also aerated well enough that I can water daily in the summer heat. In winter I water 2-4x weekly depending on how fast they dry, humidity is a struggle when the electric heat is running all the time.