Hi RampageZA,
Those are awesome strains you have, Herijuana is my personal favorite. Hope you find a Coffee pheno! Going be beautiful flowers from those ladies.
Transplanting from 10L to 40L post is fine, the plants will love the extra root space. Be sure that the roots are fully developed, yet not root bound before transplanting. If you can see an abundance of roots just starting to creep along the edge of the pot, but they haven't yet begun to fully circle, you are ready to transplant. If the soil or loose growing media starts to fall apart and there aren't many visible roots, the plant is telling you that it needs a little longer in its current home before being transplanted. Be careful not to overwater new transplants as this will retard root development and keep them out of harsh light for a day or two.
Keep in mind that the roots grow into the fabric pots, making it extremely difficult to free the root mass when transplanting.
Rockwool plugs and cubes are a great alternative for starting plants in, they are also extremely easy to transplant and reduce transplant shock.
Before adding your plants to the Freedom Farms soil mix, test a 1 part soil to 1 part water (preferably distilled) for pH and EC. Stir the sample for 5 seconds, let it sit for 15 minutes. Repeat and then take your reading. You can change the pH and EC by adding inert medium to the mix, additives or by flushing with adjusted water.
Good Luck with the Grow!!