Aside from drafts, temperature variations and obvious abuse, are there any other factors which can affect an electronic scale? Can (silly question to follow) fluorescent lighting or other electronic devices have a negative effect on them? When I started reloading a couple years ago, I was unsure which scale I wanted to buy. So, I bought a dopey inexpensive little scale the size of a pocket calculator. I figured I would learn off this one and upgrade later. Today I went out and purchased a RCBS 2000 electronic scale. This unit is all over the map when I attempt to weigh items of a known value. So that is what has led me to ask if there are any other variables which can affect accuracy. Ironically, the inexpensive little scale I purchased has been rock solid and consistent in its operation...always within +-0.1 grain when weighing objects of a known weight.