Dr i encourage you to look through this whole thread. Look at the differences in the same strain. Its hard evidence.
Tons bro. What nutes you run. I used to run uni slabs. I like them however bigger slabs have proven to do better. Dont listen to people who say rwool holds too much water. Hit them 6x a day. One flood for every 4 hours, otherwise roots tips dry too much and slos growth. In veg and flower, 6x a day, every 4 hours. Keep nutes around 1.5-1.8 ec. Veg 5.8ph, flower weeks 1-3~5.8ph, 4-6~6.0 ph, 7-9~6.2 ph. Flush for 2-3 weeks. Defoliate from weeks 5-8 a little bit every other day. Use a scrog and weave your tops like grape vines for the first 2-3 weeks of flower.