Given the information, here's a simple, formatted response using bullets for a general inquiry:

: For the best results, use the plugin early in your post-processing, ideally while the image is still linear (unstretched). Two-Pass Method :

: For users seeking a free alternative, GraXpert is often recommended for its AI-driven gradient removal. GradientXTerminator Tutorials & Manual – RC Astro

: Includes a powerful "Background Extraction" tool that functions similarly to GradientXTerminator.