here is another example:
https://expokinetic.com/?p=139
container is set to .content.column-1
break points: 640x, 990x, 991x, 992x, 1000x, 1001x, 1010x, 1024x, 1247x
viewing this on a 1024 screen it is selecting 1000x as the break point and jamming the 1000px into 991px. i cant seem to understand why it picks 1000 as opposed to 1001 or 991 for that matter.