when i bought my lenses i had also some weeks a 55digital even adapted on the gottschalt.
i returned it and went on with the 60HR, cause as you know i am a HR fan. same about the 35digital, here i was holding the 35HR and returining the 35 digital. the 55digital is similar good than the 45 digital ( which i stll have ), in my opinion also similar good as the schneider xl serial.