I dont know about the rest of you guys but even though I am using super soil, I still amend my base mix as I would if I wasnt gonna run supersoil....
Per bag of base I add (usually my base is fox farms ocean forest and happy frog mixed in a bag to bag ratio)
(some of these are tbs per gal of soil and others are per bag etc...)
1 TBS of lime per gal of soil
6-8 cups of EWC per bag
1 TBS of alfalfa per gal
1/2 to 1 TBS of kelp meal per gal of soil
1 TBS of soft rock phosphate (did not include that this past run)
1 tsp of neem cake per gal of soil
10-15% perlite...
This past run I started using different amendments due to the supersoil... fish meal, fish bone meal, blood meal etc..... I havent really mastered it yet but I'll start by adding 1TBS per gal of soil (IE fill a 5 gallon bucket and throw in 5TBS') with most amendments and see how it goes from there....
If/when I mix up another batch of SS and base, I'm going to find a nice all purpose vegan mix or something.... not sure yet but I plan on making another batch of SS after the new year so I have some time.. But I dont know about roots as I have never used it because I cant really get it, but any of the soil-less mixes I've used need to be amended a little bit... As far as planting seeds I use light warrior specifically for that and rooted clones go right in my base mix fine, not burning them at all.....