The reason I asked about "too much rooting hormone" was because I'm having poor results with cuttings in general. (I'm a newbie, so I'm still trying to get "dialed in" in terms of technique and my whole setup/environment for doing this.) Hearing lots of other people report success with hormone, I used it in a couple of cases:
I used some Dip-N-Grow as a "Hail Mary" to try to re-energize some cuttings. (They never sprouted roots in sphagnum moss, but they started sending out leaf shoots. I let them go too long before moving them to cups (i.e. the leaf shoots starting dying/molding off), so I gave them a dip before moving to cups. I had reason to believe that the mix in the cups was too dense and wet, so I took them out. Half of them were starting to rot from the bottom up. I was wondering if the "too much rooting hormone" could be too blame, but it is more likely the rooting medium was just too damp.
I also used some Dip-N-Grow on a bunch of other cuttings (various kinds, some fresh/green and other from the fridge.) It has just been very slow to see any results whatsoever --- which is in stark contrast to the results that so many other people are posting. Again, I was wondering if the "too much rooting hormone" could be to blame, but again it is more likely that my rooting environment is to blame (e.g. too cold in this case.)
Jim