yeah at least once a week, it's best to get a complete curve if you can't get mid-cycles during the day due to work, but when I look at his spreadsheet, I see some pretty flat numbers too. (flat green numbers are purrfect!)
There's also more than 1 way to earn a reduction. Cats that stay in normal numbers (50-120 with most under 100) for seven days earn a 0.25 unit reduction, just like they would if they dropped below 50. Then if you drop to 0.75 and he continues to stay mostly in normal numbers for another 7 days, he'd drop to 0.5 with the whole idea to (hopefully) get down to zero insulin and still in normal numbers!