Hi 4004, thank you for the additional information, I’ll keep this feedback in mind.

Thanks for clarifying your question. I did not use an imagery offset for this changeset since Maxar Premium Imagery appears to be perfectly aligned to Strava there is no need. For this island feature, I adjusted the shoreline to what appears in Maxar Imagery - the island looks to be a bit larger than what was previously digitized so I made some updates here.

Hi Rico557, to manually adjust the imagery offset in JOSM editor you can go to the imagery dropdown menu and choose “imagery offset.” Select the imagery you’re interested in adjusting and center it to a georeferenced layer like Strava or GPS traces. Generally it’s good practice to cite the offset in your changeset so other’s will know what to reference i.e. Maxar Premium Imagery (10.5, 7.23); Strava. More information can be found osm.wiki/Using_Imagery. Let me know if I can help further!