In reply to Offwidth:
> (eg The Cobra is nothing like UK 5c and its not the only one where a 2 grade discrepency looks most odd from your side).
The Cobra
Peak District Bouldering Vol 1 1994 - 5bc
Peak Bouldering (RF 1998) - B4 (about 5c)
Peak District Bouldering (VG 2004) - Font 4+ (about 5b)
B,M and B (BMC 2005) - V2 5c
Peak District Bouldering (VG 2011) - Font 5 (upgraded to about 5b/c)
UKC Database - V2 5c (
http://www.ukclimbing.com/logbook/c.php?i=139760 ) with plenty of supporting votes.
Rockfax Bouldering try-out day October 2013 - tried by around 30 people with sheets requesting feedback and there were zero comments on this one. Iincidentally, it was this day that pointed to the downgrade for the easy problems at the other side of this block).
Which lead us to ....
Peak Bouldering (RF 2014 ) - V2 5c
I know this is a difficult concept for you to take on, but could it be that you are actually wrong on this one? Either that or you aren't finishing it with the mantel onto the block which is the 5c bit.
Alan