Hi Hendreforgan
Thanks for the feedback and insights. I've made made quite a few belts since this one and really getting into developing my awl skills for sewing in my buckles. Until I get (or can even find) some nice pricking irons, my method at the moment is to punch through one side of my leather and then with those holes as a guide use my awl to push through the inside return tab of the buckle end.
Cheers
Raf