I have found that when topping, those clones take twice as long to root The fastest rooting ones have been taken from closer to the base of the plant. The ones with strong "twig like" stems have rooted in as little as 3 day's, while the tops were 14-15 day's and one of them didn't make it.
I only have 1 clone going right now. It was a "twig" trimming from mama when I was just thinning her. I had actually tossed it into a small trash can and I was sitting at my bench relaxing when saw it in the can and felt sorry for it.
So I pulled it out, gave it a quick angle cut further up the stem and quickly put it in a cup of water while I got my cup and hormone powder out.
I split the stem in a + pattern about a 1/4 inch up, scored it, then put it in a small cup with happy frog.
I didn't even dome it...I put it in the shade of the mama plant, misted it and wished it luck.
That was Wednesday and it is still standing and looking fine. I bet it makes it. Anyway, the point was to try some cuttings further down with sturdy stems, not the soft, thicker, topping cuttings. They root faster, they seem hardier, and have been completely unfazed with re-potting.
I feel a little silly giving a guy with your credentials grow advice, but I did find life much easier, (and less stressful) with the lower cuttings.
just my rookie .02