@nichlas That would be a first. I've been using AutoCAD for over 20 years, and electrical/electronic vector CAD programs for a similar length of time, and increasing drawing database size and complexity ALWAYS increases rendering/redrawing/regeneration time. Perhaps you don't notice it if you're on a very fast network connection with a "bleeding edge" multi-core computer and are looking at a tiny slice of OpenStreetMap, but the typical user will see delays and slower performance as drawing complexity increases.

@joakimfors Thanks for the tip! The right mouse button does it — click and hold while moving the cursor. It will make editing much less tedious.

@chilly, I don't have a GPS unit at present, and I value my health and safety too much to go out into the street with a compass and tape measure.

I happen to live in Morgan Hill, so I have the choice of checking an online map or taking the time to get into the car or hop onto a bicycle, going to the area in question and checking it out in person. Sometimes even working from memory seems to produce better results than using Google Maps, Mapquest or Mapblast!