I just thought i'd share my setup which I have nearly 100% survival rate and great speed. I am quiet happy with the results. It is basically a DIY ripoff of the ez cloner. Cost me less than 50$ in total materials for 45 site cloner. Neoprene collars, netpots, ez clone replacment misters, and submersible aquarium pump all easily found on ebay. The clones below in the picture were taken 6 days ago and as you can see nice and healthy root growth. I have noticed some strains clone much easier than others but average is still 7 days. These require no foliar misting and you can leave alot of fan leaves on and they wont transpire to much which is great for when they go back outdoors. As I grow mainly outdoors my cuttings never leave the sun from mum to aerocloner back to the ground so I have elimanted the need to "sun harden" them which also increases the speed at which they are cloned. After much experimenting 15minutes on and 30minutes off seems to work the best for me. I also just use rainwater and add alittle "seed and propagation solution" to the water. This is basically just a weak fertilizer, I still use clone-ex to dip the stems in as usual.
After that the clones will go into a seedling mix in small pots, within another 4 days roots are already showing signs of growth and extruding the bottom of the pot indicating they are ready to go into the ground. So 10 days total from cutting to back into the ground next to mum.
And always remember to inoculate your seedlings as you transplant to ensure direct root contact!
I forgot to mention, In my opinion, I would not recommend running your pump 24/7, from my experience this always results in failure. Roots need oxygen just as much as water to survive so a good mixture between the both is optimal adding a air stone to the reservoir can increase results but i just never bothered.. 15mins on 15 off also works well.