Actually, I think 159/160 and 169/170 are probably, psychologically, the biggest gaps for applicants AND adcomms. There's something about factors of 10, especially those two in terms of the LSAT.
Yeah but that's truly psychological. What's the difference, 1 or 2 questions? And I doubt an ADCOMM can afford to get caught up in something like that.
The difference is a few spots in U.S. News after several applicants with scores 1 or 2 points lower. It is a big deal.