Edited todos. Note that if a scheduled launchd script is already running when you try to kick one off manually using the start command, then it appears the script will not be run again after the scheduled run. Conversely if you kick off a manual run and then a scheduled run becomes due, the scheduled run will start after the manual one finishes. It appears that you can never have more than one instance of the script running at one time.
Edited todos. Note that if a scheduled launchd script is already running when you try to kick one off manually using the start command, then it appears the script will not be run again after the scheduled run. Conversely if you kick off a manual run and then a scheduled run becomes due, the scheduled run will start after the manual one finishes. It appears that you can never have more than one instance of the script running at one time.

floehopper/installd-client,floehopper/installd-client,floehopper/installd-client