The 2005 restoration at St Helen's, Abingdon to close to the 1927 25 stop original is very successful, but I was disappointed by the Swell mixture. It has been restored to its 1927 composition of 15,19,22, breaking back a full octave at middle C to 8,12,15 so losing its brilliance just where it's needed. I don't think this is a typical period H&H composition so perhaps it was done to the wishes of the organist at the time.
https://www.npor.org.uk/survey/E01126