Scale of Celts and Germans

[Kikaz]

Is it possible to increase the size of the Germans and Celts for EB2 or is that hard-coded? Anyway, I bring this up after reading this scholarly essay: http://stevequayle.com/Giants/W.Euro...ope.Index.html
As an aside, all of the references are on page thirteen. So perhaps it would be accurate to have Celts and especially Germans stand at least a foot above everyone else? Anyway, I hope the EB team will consider it.