Nothing learned ....

IM Richter is a ELO of almost 2500 safely and competently explained in a quiet voice. But somehow does not come around a lot here. I was hoping that I get tips to improve my own variation calculation ability. Unfortunately, awakens judges the impression that he expects not much different from me. Find different candidates and then just expect and overlook anything - he says (sometimes gets even a truism in the style of "no hurry") essentially.
The reasons that the good man 500 Elo points more than I unfortunately I could not determine the basis of the DVD.