Just listening to "Newyddion" (Welsh language news) on S4C and I am sure Wigley has just criticised the system of PR.
Some personal reflection : Having now contested two Assembly elections I have seen Labour gather the highest level of votes in the North Wales region, but end up with no additional seats. This is a little strange for the following reason. After each election members of Plaid Cymru, the Tories and the Lib Dems can all feel some attachment to the Assembly via a North Wales list member(s). In spite of stacking up the support Labour supporters in areas like, the old Caernarfon, and now the new Arfon have no such link. I always felt that was a little unfair.
I don't think Dafydd has much to moan about at least he can talk to his North Wales regional AM. As a Labour supporting elector I have no such option. That does feel comparatively unfair.