Best Potting Soil for Clones?

What is the best potting soil available for clones when you first transplant them? Also has anyone used Klassman Potting Soil and what type of soil did you use? I used to use Miracle Grow for Seedlings but I noticed that this batch of clones is showing some some yellowing from the inside of the new growth that is either a sulfur or iron deficiency. What is the normal cause of new growth yellowing from the inside of the leafs?

I was just reading through this and think you might find it helpful

http://www.mandalaseeds.com/Guides/Soil-Guide

What soils does everyone use after their clones start to produce roots? Please any information is greatly appreciated.

Miracle Grow should never be used for cannabis. I use Fox Farm Ocean Forest after my clones get roots. You can also use Fox Farm Light Warrior. That's more for seedlings and clones.

I just cut my fox fam O.F. with 50% coir to create a light mix.

ive been using 707 and this manna mix which is cocunut based with low nutes but you have to put in the white rabbit turds in or they will suffocate.