>>63794896
No, it’s basically all or nothing, not a sliding scale. Once you push return reduction past a certain point you achieve "stealth" or very low observable. If you’re just a little bit above that threshold a radar will easily filter your signal out from the background, and only struggle at the fringes of its useful range. LO isn’t useless because you’ll still be able to penetrate past the fringes of detection range (which can be quite wide) but to you need VLO if you want to fly past a powerful radar 10km away without it not being able to filter you from the background.