Wow. It is over 11 years since we last visited. But noticed there is much more information online about this complex since then
Dyfed / Cambria Archaeology carried out a survey in 2007 which says there was another stone row recorded in 1975 which is no linger visible. Lots of detailed info, references and drawings here:
dyfedarchaeology.org.uk/projects/cefngwenffrwd.htm
Some notes / images on the Stone Rows blog:
stonerows.wordpress.com/gazetteer/region/mid-wales/cefn-gwernffrwd-row-i/
They still haven’t linked it to this though
themodernantiquarian.com/site/8966/cefn_gwenffrwd.html
Guess you really know you're getting old when you're reluctant to go back somewhere.... cos it was only a few years back... only to realise it was 17. Keep on keeping on, my friend. The obscure places need the effort.