I’M A LITTLE EXCITED! I got a new scanner (Epson Perfection V600 Photo) and it scans things effortlessly! I just went a little scanning crazy and these things have only been cropped and not retouched at all. A few of the old scans in for comparison.
After more problems, I discovered the slowness of the Silverfast software to save my scans was down to it needing more processor power than my machine had. Good though the programme is, I changed back to using the VueScan software I already had. This solved the immediate problem, but it has far less in the way of editing tools before the scan, so I may have to look at adding some processor power to fully utilise the quality that is available on the Epson V800 scanner.
Theses scans are all from Rollei 80S processed ID11 1;1 12.5 minutes at 20 degrees.