Not quite sure what sidewinder you own. But it seems as though they have a directional beam, which could be beneficial to one trying to see why you're losing air pressure, or tail lights aren't working, and then trying to make repairs. While the HDS might not replace it in every situation, It'd be a great light to have for an EDC/initial inspection. Seeing that you already have the sidewinder, I'd say buy one of the most durable and functionable lights around. But that is only my opinion. Also, you should have made this post in recommend me a light. Where it may be moved to.