[mkgmap-dev] reduce-point-density vs. remove-short-arcs

Hi, I was wondering what is the difference between --remove-short-arcs and --reduce-point-density. Their description differs (short-arcs says it removes things that cause "routing problems", while point-density seems some sort of general simplification), but I'd think that using --reduce-point-density would mean that there's no short-arcs left afterwards, or are there? I.e. is there any cross effect between the two? (I now have -remove-short-arcs=5.5, but that's probably purely for historical reasons). Best regards, Valentijn