You, young pup, have just started getting there, hang on for the ride . Yeah, I'm passing on the Still Rivers at this time. They are so expensive compared to the FSU's that I get at HD (by about $1.50/bag), that unless someone tells me a bag of them not only lasts 48 hours in -20*F temps, keeps the glass clean, and jumps out and dusts my furniture for me, there is no incentive for me to try them. The P61a loves the FSU's - they run nice and hot, and I get almost no ash. Seriously, I get no mustache on my pot even after running for 3 days. Although the glass does get sooty faster than other pellets (I've noticed that on other stoves too with the FSU's), all the other qualities of the pellets more than make up for it. I started mixing the FSU's with another really ashy pellet that I have tons of (literally), and the combo is to my liking - much better than I had hoped for.