New updates and improvements to ShipScout.
We’ve released:
These two features give you increased control over who is included in your tests. And they’re available to all plans!
We’ve added support for fetching the threshold values from liquid to make it easier to integrate ShipScout in themes. Read more here.

Now you can setup free shipping discounts based on item count. You can set these in a Threshold or Custom shipping test.
Merchants have been asking to be able to target a smaller subset of their visitor population to minimize impact. You can now set a percentage of visitors that are included in the test.