dial in your temps, rh, c02, air flow, nutrient supply, water quality, light supply and garden habits. nothing else is needed for perfect plant expressions to their fullest potential
your plant will only grow to its weakest resource. you get to decide what that resource will be.
If you find you gain extra good smells, or healthier growth by adding another resource you'll see its only because you were shorting it in the first place. The best light in the owrld wont do shit if you over water the plant all week. The highest quality nutrient system will not support a healthy plant in high temperatures, or with no c02, for example.
the last resource I provided in my rooms was c02. I find that terpene profiles increased as well as overall plant development. when I add something to my garden now... my plants suffer. I feel dialed in now and want for nothing.