Leaf size and reduction are kind of beside the point with really good wild specimens. If the tree has decent movement and character in the trunk and is capable of pretty good ramification, what difference does leaf size make anyway, or species for that matter.
This tree comes up excellently in trunk size, ramification, character and potential. So what if the leaves are four or five inches (they will most likely be smaller than that since "life size" pin oak leaves are about four inches). I suspect the leaves will reduce on this species pretty nicely (although not greatly) anyway.
Tom, it already is a credible bonsai--you did very well in getting this one. All you have to do is make it live and make it credibler
