It's hard to find NDB approaches at all anymore. Did you do IR in the US? The FAA from what I've read doesn't even encourage an instrument checkride in IMC. That's crazy you did it twice.
I went to colllege to become an airline pilot, and I was shocked that I ended up having to fly an NDB approach in actual conditions to minimums. You just don't see that anymore.
And the tolerances on the checkride is that you can only deviate from the course by a certain number of degrees.
I vividly remember staring at the ADF with the needle swinging wildly left to right as we were tossed around thinking "surely I can't get failed for turbulence"?