how do i produce bigger buds

try utilising the scrog method which is a screen place at about 2-3 feet above the ground and the plant is then spead out under the screen untill the whole screen is full then flowering is induced and your colas grow up from the screen like little christmas trees. I use the scrog method and have 4 plants under a 6x10 screen that fill it up and yield about 2 lbs every 3 months for 2 patients. i dont need to have the 6 per patient to get what we need.

also i use a co2 injection system called the ppm3 and have a way nicer yield with that included. probably 30 to 40% more but it cost's money like $40 every week to keep it flowing at 1500ppm during flower.

i dont have oxygen but i am using a lung room witch is working out ok..there is tons of good advice..i think my first step is going to be better nuts..any suggestions?
i did recently take clones and improve my veg lighting and the little ladies are nice and tight tougher..what about adding side lights..what kind...would some led go good in there?