So I went to check on the famous The Dragon Nest Left Behind map and compared it to it's counter part Nest of a Dead Dragon and the difference is staggering. The former is by far much, much better than the latter. NDD has no spawn to speak off while DNLB has great spawn. While at my level I still have the option to go to Himes I imagine higher level players dont have the luxury because by that point Himes will provide considerably mediocre experience. My suggestion is to change the spawn at NDD so that it matches to that of DNLB and therefore increasing the viable Skele maps from 8 to 16.
Because they go out and try out different places like Temple of Time and Ulu City and figure out that it's even better there than at Skeles.