By Mark V. Lonsdale
When we discuss form in archery, it is not about the scores on the target, but your body alignment and bio-mechanics in relation to the bow.
One point worth considering is that in precision shooting, the shooter or archer can have poor form, but if they do it incorrectly exactly the same every time, then they can still group and score well. Accuracy is the product of uniformity so even uniformly poor form can be accurate. This is a common problem with self taught shooters who have never had professional coaching.
This problem becomes more apparent the more one progresses in competition. Eventually those bad habits will become a road block, that then must be unlearned to progress.
Even if you do not have a coach, there are numerous coaches online who will happily critique your form.
Both still images and video are useful training tools, but video can be analyzed frame by frame to find any weaknesses in form or technique.