I recently did similar 2 u - i took 8 clones off a few good females i have.
I stuck 6 in rockwool inch cubes and put 2 directly into soil.
Basically same technique as u have used only i used a rooting gel as opposed to a powder and had them in a small plastic propogator under a single 125 watt envirolight.
The 2 in soil took pretty well straight away - well within 7 to 10 days and are doing really well now and have even transplanted them into much larger pots but the 6 in rockwool........ 3 of them died!! and the other 3 looked on the brink for a while!! All the leaves turned yellow and died and they are only now starting to take! and that was 4 weeks ago!!!
So i`d say u`ve done quite a good job - they`re lookin pretty good 2 me!
I`m sure now u`ve got them in soil and they are 3 weeks in and still very green then they`re gonna b fine.
Friad i`m gonna stick to soil in future!! all this rockwool and hydroponics don`t seem to work 4 me.
keep it simple i say!!
lookin good anyway rekap
Digi