u/Low-Cry6807

I am a weekend warrior and only work on my cars. I am going down the rabbit hole of equipment and I am deciding whether to do a one-step correction by hand or bite the bullet and get a DA polisher. I understand I won't get the same results by hand as I would using a DA. I am stuck as to whether it is worth spending $150 now for the polisher, or if using pads will be sufficient for a non-professional detailer.

Also, does anyone have a recommendation for a one-step correction product? I was leaning towards 3D One.