So that this puzzle doesn't close within hours of Puzzle 174, we have extended the puzzle deadline.
We have also changed the difficulty to "Advanced" due to the density not being as clean as previous Electron Density puzzles.

there are still very large score jumps (either way) when aligning the density, this also seems to change even when you have folded several hundred more points without a major change in pose, clicking align can produce dramatic score differences, particularly if it just flips over from being apparently closely aligned to obviously wrong.