IMHO the biggest problem is, that all Korea sat maps are (nearly) crap. If you have good colors, it is winter, if it is summer it is too bright, if this is well you do not have a good from above, if you have this too, then there are clouds, and so on.
The only part which is usable for great cities (with a good view from the top, a good color) is a little part beneath Kimpo. (Google maps, Bing maps, Here maps.)
And I really want to have several crossings, which avoids a repetition better.
Momentary Iām using Bing maps, but Here maps is a great temptation. But with Here maps you can only use a very small area to get a picture because of all the symbols, and that is little horror with a 10m map! Also, I do not know to disable labelsā¦and I think that the contrast of Bing maps is better
2048 dds-file is good enough IMHO, andā¦have you already made a 4096 dds-file? This takes time, even with i5-3450 and 8 GB RAM and a AMD HD-7770.
I must now make a decision, and I think it will be Bing maps, 20m map, 50005000 picture, 2048*2048 dds-file.
EDIT:
Just tried 4096*4096, took several secs saving, and is big ~11MB. Only city tiles = ~1,7GB.
Happy tiling!