In reply to wayno265:
> I constantly see reference to "big boots" on the forum - usually in reference to what someone was wearing when they climbed something they're embarrassed to admit to without further qualification.
You do occasionally see this, and it always makes me smile. It's a form of snobbishness. However, I do sometimes note that I have climbed a route in 'big boots' (my B3s, or sometimes my B1 walking boots) because it does result in a different climbing experience, and sometimes requires different techniques.
As a general rule, for routes well within my ability I will tend to prefer climbing in 'big boots' or approach shoes simply because you can also walk in them as well.
> A genuine question - what are big boots specifically, and how do they differ from small or normal boots?
Traditionally the distinction meant nailed mountain boots vs. tennis shoes, pumps or the like. It has evolved into its current meaning of B3 mountain boots vs. rock shoes over the years. Nowadays the difference in technique is narrower, as all mountain footwear regardless of design or weight have rubber soles.