I have only done 3 grows from start to harvest.
The first 2 were in Foxfarm Ocean Forest with added Perlite and Dolomite. I used RO water, BluLab PH pen, 600 watt switchable HID, foxfarm line of nutrients on the first grow, General Hydroponics nutes on the second grow. I flushed 2 weeks before harvest with Sucanat and no nutes last 2 weeks. I barely even needed nutes with the FFOF.
But my third grow, I decided to use promix by itself, and I forgot to add a little extra perlite. But I didn't know that promix requires a different water ph than soil. I'm still not really sure what ph is good for promix.
I have been doing 6.1 because I think that's what Danny Danko said for promix I think, but with soil I did 6.5 and everything was perfect, rapid growth, excellent smoke. My current has been hard my veg took way too long, its gonna be 5 months from clone to harvest, but the harvest should be decent. I'll be chopping in aprrox. 10 days but hard to tell just waiting for red hairs and cloudy/Amber triches.