Hi all! New, here, I've noticed similar versions of this question asked here before, but I wanted to ask for myself with more concrete details including my technique and equipment. I'm curious to know what the maximum enlargement from 6x7 before visible softening becomes an issue. For reference, I've printed 35mm at 5x7 and 8x10 and found the 8x10s very soft compared to the 5x7s. However, the negatives I've tried this with were shot handheld and using a lens that was not particularly sharp. All of the 6x7 negatives I've shot so far (Mamiya RZ67 Pro II) have been on a tripod, mirror locked up, using a shutter release cable, at apertures usually between f/11 and f/45. Ideally, I'd like to make prints up to 20x24 from these negatives, but I don't want the type of softening that I've noticed between 5x7 and 8x10 from handheld 35mm. Subject is landscape, so details are important to me. I've mostly been shooting HP5, Ektar and Pro400h. The enlarger I'm using is a Beseler Dichro 67 head mounted to the rail system from a 23c series model. Enlarger lenses I have for MF are EL-Nikkor 80mm f/5.6 and 105mm f/5.6. I currently don't have an easel large enough for 20x24, but when my darkroom is back up and running I plan on testing on 8x10 paper at the desired enlargement size. In the meantime, I was hoping to get input from this wonderful community! Thank you in advance for your help and input!