I'm curious how they'll adapt. The behavior won't change at all, but the number of steps will get smaller till they reach the limit of their range. I.e. only 100 steps for current bid: 0.8000, current ask: 0.8200, lowest acceptable ask: 0.8100 -> 0.8199, 0.8198 ... 0.8100.

Nevertheless:
I'd be happy, if you would announce major changes like this with a leadtime of 24+ hours and more visible in the future.