If there is significant deviation it should be applied before variation (and any leeway effect). Process of converting a compass course steered to a true course that can be drawn on the chart is: Course Compass - apply deviation to give: Course Magnetic - apply variation to give:Course True - apply any leeway to give:Course True that can be plotted on the chart.
No problem passed the course, this video helped back then when I was doing my RYA qualification when I joined Coastguard 😁👍
At what point would you include deviation to this process?
If there is significant deviation it should be applied before variation (and any leeway effect). Process of converting a compass course steered to a true course that can be drawn on the chart is: Course Compass - apply deviation to give: Course Magnetic - apply variation to give:Course True - apply any leeway to give:Course True that can be plotted on the chart.
Sorry to miss this question for so long :-(