When I didn't know any better, I bought a bag of Cowboy when I bought my first Chargriller and side firebox. All it was back then was burnt lumber. I used abt 1/2 of the bag and never went back.
I then went to the K briqs, old style.... after they "improved" I switched to RO lump and never looked back. I have tried a few other brands that I could find locally, but RO is available now in several local stores.
After I built my first UDS, I was amazed how well the RO lump burns in it. I would use abt 40-50 lbs a night in my offsets.... the drum will use approx 5-7 lbs for the same cook, and I can control my temps real close to what I want.
I am sure there are other brands out there that may be better (at least to some people), but I am happy with my RO and will stick to it for now.... availability makes it a go to for me.
Smoke-N-My-I's Competition BBQ Team
2 Chargriller SuperPros with SFB's(retired)
2 UGLY drum smokers
Weber 22 1/2" & 18 1/2" Kettle
Super fast RED Thermapen
Screaming fast ORANGE Thermapen
KCBS Certified Table Captain
KCBS Certified Judge