I tried jiffey pallets and clone dome a few times with no luck, heat of temps above 72F helped but the dome kept dampening off my cuttings. I was reading reviews of rapid root and many people including myself had bearded clones first try. It really does help noobs.
I tried cuttings in cup of water, no luck. But the rapid root worked great, but I kept temps above 72F. I put a plastic bag over say, 2 cuttings in one cup. Maybe find a way to prop up one if to do one.
I am saying this like I am an expirienced cloner haha once again it was my first success but it was so successful I already have confidence doing it again. I even ripped one out half way rooted and still succeeded. I poke two holes through bag when roots visible. Transplant and remove bag.
Hope this helps, I really struggled at first but this method worked and read how many people had same results. Wish I did this sooner after everything I tried.