As a pre-beginner, you folks know I have a million stupid questions. Here's another one. I'd like to understand how switches are designated--I have the impression there are low-angle and high-angle switches (acute and less acute). I'd like to know if that's true, and what the typical applications are. I'm interested in G gauge--if that has any bearing on the discussion. Is there a place I can go to understand the whole deal with switches? Oh...control panels for them is also of interest, naturally. It seems so far like this has to be a custom-built thing. IOW, I'm not seeing ready-made gear designed to allow control over say the 2- or 3-dozen switches a fella might need for a main line and rail yard setup. Hep meh!