I am farely new here to your forum and have been reading past strings daily for a couple of weeks now and realize that there are a lot of really good people with valuable information. I bought a new MK-512 this past week, hadn't even had the chance to fire it yet. It's not the first Mark II that I've owned, as I had one about 10 years ago that I have kicked my self in the hiney since I sold it and vowed that I would own another. Anyway as I go threw this forum, I see the comments about stove pipes and can't figure out what every one is refering to, am I that dense? Can some one point me in the right direction.