Just something you should look at when you have time. I'm not going to break down exactly which zones and point values - that can be found on many sites... but just about every step (that I've come across so far) says to stay in the zone until everything in the zone not only goes green, but many have gone grey.
I have already figured out to jump from the current zone to the next group 50-75 points before the guide says to. As an example, I've been in Hellfire Peninsula since both mining and herbalism were over 200 but the guide says to stay in the previous zone until they were both over 275. Even at 200, I went from a zone where a few nodes were yellow but most were green, to where everything was brown. So, obviously the zone transitions need to be re-evaluated.
I have already figured out to jump from the current zone to the next group 50-75 points before the guide says to. As an example, I've been in Hellfire Peninsula since both mining and herbalism were over 200 but the guide says to stay in the previous zone until they were both over 275. Even at 200, I went from a zone where a few nodes were yellow but most were green, to where everything was brown. So, obviously the zone transitions need to be re-evaluated.