Both wheel pose and hopping forward require a significant amount of strength and flexibility, but technique also plays a very important role. That’s what I’m assuming you mean by ‘knack’. Technique and strength are different aspects of the pose, but complimentary.
We plan to film a class on hopping forward and Tracey has a series on wheel pose coming out soon. Fiji already has a class that breaks down wheel pose, called Workshopping Wheel Pose. Have you tried that one?