What I have found with cloning is what works for 1 person might not work for another.I tried fancy bubbler cloners and every method everyone told me about and I failed. Now I use peat pellets with 2 ltr. soda bottles for domes. I cut at an angle and dip it in rooting powder put it in the pellets ( after they soaked in water), mist them and pop a dome on them. I mist them daily and I get roots in 1 to 2 weeks. I don't cut any leaves heck I don't even steralize my razor knife and I've never had a bacteria problem. You might just have to try different methods till you find what works for you.Keep at it it will happen. Now I get 9 out of 10 rooting and I take clones from all over the plant too. Top, bottom,middle. The cloning gods have blessed me finally.