I wear a size 12w. That wasnt even the whole bud, I accidentally cut a big piece off the bottom. Yes, I use battery acid diluted for PH down. Also, the full plants you see where grown under CFLs and using a mix of miracle grow soil, perlite, and regular potting soil. I used miracle grow tomato fertilizers on them, and once I peed in a gallon of water when I was feeding them (I was drinking).
On my hydro I use battery acid for ph down. Its about 5-6 bucks for enough to make something like 20-50 gallons depending on how strong you make it. You can see the battery acid beside the hydro nutes in the one picture. Square plastic jug, as well as the gallon jug being the diluted.
Using Lucas Formula(GH micro and bloom only), epsom salt, and battery acid only in the reservoir I netted 10 ounces from 2 plants under a 400w hps. No, I didnt veg them for 6 months or anything. I cloned them, then I vegged them long enough to get them about the size of the 2 plants vegging in the picture. Then I cloned them, and let them go another week. So about 3 weeks total. That being under CFL.