They own several scanners (CREO IQSMART3, IMACON 848, SCREEN CEZANNE, DAINIPPON SCREEN 8060 MK II, etc).
They use IQSmart3 (wet mounted) and Imacon 848 for standard-cheap scans; their Dainippon 8060 drum scanner exceeds in quality any other scanner (drum or flatbed scanner, Eversmart included, obviously): it's their choice for serious scans.
How did you make your comparison?
I wouldn't forget that the scanner operator is extremely important too (expecially for drum scanners).
Looking for new scans by CastorScan from more detailed originals; the linked scan is an excellent reference for grain, dynamic range, color gamut, etc.; certainly not for resolution, because the original shot is quite smooth.