Not to hi-jack the thread, but I'm curious about the gas taste thing.
I can always taste a difference in BBQ when it's cooked on different styles of cookers. I've tasted meats from many styles of smokers, and as such, I can usually identify what type of smoker the meat came from. With that said, I've never been able to detect a "gas" flavor. What I can taste is more of a function of the cooking environment, i.e. type of wood, moisture level of wood, high humidity, low humidity, convection, no convection, etc. I can also usually pick up when lighter fluid or match-light charcoal has been used. I must admit that the lighter fluid taste is harder to pick up on a larger batch of charcoal that has been allowed to burn down.
Anyway, I've never been able to pick up any "gas" taste from slow smoked items. The way I can taste something has been grilled over gas is the lack of a charcoal or wood flavor, and I've even been fooled on that if someone is really good with a smoker box on their grill.
I'm not trying to start any kind drama here, but I just can't taste it. For those that can, what I really want to know is can you tell the difference between LP and NG? If so, can you describe it? Do you think it is a function of the "scent" they add to LP and NG, or the gas itself? Also, is there any other flavor that is similar to the taste you find with gassers?
Like I said, I'm REALLY not trying to start any sort of argument, I just am trying to understand. And maybe refine my palate a bit if y'all can guide me