Hi there, for what it's worth I've quit using the Publix Greenwise lump; I've never had it smell bad, BUT I have had problems with trash in the lump. In one bag I found the plastic remains of a small garage door opener or maybe a remote keyless entry for a vehicle. Thankfully I saw it while I was loading my charcoal basket! I've also found pieces of metal and other debris.
When I was using it, I also noticed it sparked a lot compared to RO. I now use just RO. The problem I've run into is that sometimes Walmart runs out so when buy I typically get 8-10 bags at once.
ps. Long time lurker, very seldom poster.