In reply to puppythedog:
> what does that have to do with an argument about whether a climb graded by the Ascensionist at 8a+/b is harder than a climb described as 8c+.
> Do you need to climb 7a to know that it is likely to be easier than 8a?
We're not talking about whether a 7a is likely to be easier than an 8a, but the relative difficulty of two climbs that have so far had only a single ascent, and by two different people.
To put it in statistical terms, the error bars around the grade difficulty of both climbs are likely to overlap somewhat.