The way I see it the reduction is for the 3 seasons after first attaining an average.
So if first average was 2011 then reduction applies in 2012 2013 and 2014.
If Birks fits that heshould get it too.
That does mean Leighs ommission isnt due to the numbers game as he would fit for Morten.
Unless of course they hadnt factored in the reductions until after he was signed. If so a schoolboy error.