What kind of bike does Dad have? I run Brooks B66/67 on my upright bikes and Flyers or B-17's on my drop bar bikes. I also have one monster B33 that is for my DL-1 Roadster. I have never had a Brooks that I didn't like, however they are not all exactly the same out of the box, some have taken longer to break in than others, but they have all felt fine right out of the box and just gotten more comfortable as I ride them. Then there is the Imperial line which is a whole different animal. I don't have any of those.
Aaron