Agree with Ken..I will just continue to leave them alone. I usually watch the tips, if it is still appearing okay, like no black thing on top and I see it is getting shiny and misty, then it is still doing good. I also try to feel the stem, as long as it is still firm, may go just a bit wrinkly but not going mushy, then the cuttings are fine. I do not try and peek at the roots, just have to keep them be. But do watch your temps.