Exports one drill that is a validated preset, untouched — the day-one import test. If this loads cleanly into Spinfire, the file format is right.

Players, targets, levels and history live only on this device. Save a backup file and keep it safe — it’s the only copy. Restore it here after clearing the browser or moving to a new phone.

Export one test drill per shot, run each on the machine, and tweak the feed (power, spin, height, interval, placement) until it plays right. Export your Spinfire backup, then load it back here — your corrections update that feed in every drill that uses it.