I always had this little problem with the UnrealEd interface, where I'd be making a few rooms, some walls, and just placing stuff around, but I'd soon start noticing, that even though I have "grid snapping" enabled, everything seems to be "off-grid". Say I have a blank slate, with nothing but the initial builder brush cube; I hit resize mode, and begin to scale up the brush. By the time I have the brush at a good size, I notice the edges of the brush (Or ANYTHING I care to resize, move etc) are anywhere between 1 nanometer (lol) to half a grid measure out of place.
The annoying thing about this, is that to correct it, I have to zoom in to pretty much maximum, and disable grid snapping, and try to carefully move the object back in line, with all the precision of a bleeding micro-surgeon!
This happens, literally ALL THE TIME, in practically every map I've ever made, in every version of the editor right back since UT99!
Maybe this is not important to most level designers, but I've decided I want everything to be flush. Thats how things have to be when Im at work putting kitchens and interiors together, and I've got a feeling there'll be less BSP errors, if nothing is overlapping, or leaking into eachother.
Please, there has to be a simple way to permenantly circumvent this, and I've just been completely overlooking it all these years!