about the rounding: yes, that might very well have been the reason why some coordinates were skipped, although it happened in my factory on a distant site 16km away as well as on several sites right in my base at distances of 100-300 only. thanks for fixing it.
if more ore is requested than provided, active and passive should work equally well, as long as people also think of requesting the batteries. with active chests, batteries are a bit easier to handle (put into storage, thus easier to limit production of new batteries), and with passive chests ore is easier to handle (no longer overflowing storage if requesting not enough ore).
since more mods were updated in the meantime and I'm missing "only" 20-30 now, I'll start using 0.14 soon(tm) ...
ps: sorry for some double posting, but the mod portal makes it difficult to follow when the same is discussed or asked in several mini-threads. I'll stick a bit more to the forum in the future ...