Just some words of encouragement for those going for title, keep at it

Got 100% cantha and with it Legendary Cart recently so just a few words of advice I found helpfull.
Tyria took me ages because I had to redo every single map I'd ever been through, and some area's several times because I wasn't thurough enough.
With Elona and Cantha my method has been choose an area you want to map out completely (say kaineng city, starter island) and go and map that area out entirely, every single map in it around the edges till you reach the portal you started from. This way it cuts down the huge task of GMC into smaller chunks, and keeps it more manageble and less frustrating for you (I went from 80 to 100% elona in 1 day, 90% cantha to 100% in 1 day) You know you've had the area's so don't have to redo them, by the time your done you should have 100%.
Elona I did this way in 1 go, didn't have to redo anything, Cantha I got lucky at 99.2% to get into a JQ mapping group which got me to 99.8, and last I did with the 0.5% glitch at that one town, never got banished by Shiro.
So just be thurough, take the time for it and turn away from the wall to enjoy the view every so often