My thoughts exactly,from what ive been learning of Indole-3 it does just what you said,from some of the other things ive read it's pretty unpredictable as far as effect.
I kept a pretty decent log of things i did to different plants & at what stage of the grow these things were done,next round i plan on giving half of them the exact doseage at the exact same time into their flowering cycle.
I think the stuff works wonders but being that im not a botanist or master gardner anything i think is pure speculation.
Yea, I'm with you. This thread has really inspired me (along with many it seems) to start really examining and playing with phytohormones. I've got four plants about 3 weeks in flowering that I've begun foliar feeding with a light IBA / nute mix, as well as supplementing their regular watering with a more concentrated version of same. It's impossible to speak conclusively without any control group, but I'm very happy with what I've been seeing.
My unwarranted speculation regarding the apparent unpredictability is that IBA serves as a rapid boost to whatever phase of growth the plant is currently undergoing, i.e; if the plant has had its root system severed, and is diverting local nutrients & presumably phytohormones to the wounded area, IBA will signal immediate and rapid (comparatively) growth specifically in the root zone. When the plant is diverting all its internal resources to flower formation, I would expect a large dose of IBA to be delivered to the bud sites and have its greatest effect specifically on bud growth. Just like giving testosterone to a runner and a rower, both will experience massive growth, but in very different ways, according to their individual training parameters.
I think there is some amazing promise here, as you've very impressively demonstrated, and some really exciting experimentation to be done in the general area of plant hormones. Regardless of what's known to be certain, I think IBA is definitely worth using almost any time of growth (one $5 jar could go heavy for at least one or two grows)