TML13 wrote: BTW, I checked Breadandwine's recipe for the buns and if I remember correctly there is no milk? My recipe for HCB has milk AND butter, which do make a difference in their lightness.
Sorry, TML, but the inclusion of milk - or butter for that matter - has no bearing on the lightness of bread. What does is the amount of water you can incorporate into the bread - witness my ciabatta recipe that has an extra 25% of water and rises better than any conventional loaf I make!
As you are aware, I'm a vegan, so I never put dairy or eggs in my bread. Apart from my dietary requirements, I see no need for those ingredients in a bread dough. Bread is basically flour, water and yeast (and salt if required) - adding sugar, fruit and spices turns it into a bun dough. IMO, the only way you would be able to tell the difference between my recipe and yours, TML, is to make them both and do a side by side tasting.
Trouble is, received wisdoms get in the way, and we tend to follow recipes handed down to us without questioning their rationale.