Quick Cloning Question

Hey,

I normally take my rooted clones (from a bubble cloner) and plant them directly into an organic soil mixture. I have noticed though, that many of the clones fail after planting in soil. Is there another medium I should put the newly rooted clones in before going to soil? Also how big should I let the roots get in the bubble cloner before planting?

Let the roots get about 4-5 inches then plant. dirt is fine as long as it wet enough, when you plant in dirt are you going to a new light? if you go from a floro clone light and put them under a hid that is to close you can kill them pretty fast