Successfully tested Merge request 44 with migrate_tools 6.0.4 and migrate_plus 6.0.2, on Drupal 10.2.3. On a local environment, I tested removing 10000 items from the source of a custom migration and executing ´drush mim --sync´. The items were correctly removed, and the time to complete the sync import was much faster than without the patch.
Was there more thoughts given into the discussion #mr44-note197623 about using MigrateTools as a service vs moving to a dedicated service? I think it would make sense but I'm new on the issue.
Sucessfully tested MR 19 on a large custom migration (42000 nodes) with --batch-size of 1000 and 2000, with and without the --update flag, in a local environment and on a dev server. migrate-import correctly processes the given amount of items, and the duration for each batch stays similar.