I use firestorm, and I dropped down to 60 meters, there is still some drift, anywhere from .001 to .01 meters, or the prims will rotate anywhere from .001 to .1 degrees. This is even after I have got them set perfectly, put the rezzer script in the root prim, lock the section, and then put it in the rezzer. When I test rez it, many of the prims will either drift or rotate, leaving visible gaps. I want to sell my build but I am a perfectionist and dont want to sell them if not perfectly aligned.