it's not that different from any other game.
dunno, each 'tweak' constitutes a build also; speeding up something or changing a color etc. sometimes doing one dll at a time (instead of rebuild all) will count as 4 instead of 1, so it could prbably go up another 1k before issue.
it is slowing down, i was able to get a successful compile with 2 new files from scratch including global header work correct on the first try.
