Here's what I mean about a discrepancy in the definitions:
ABA Standard definition for Split Wing "A wing so irregularly formed as to show a decided gap between primaries and secondaries, or primaries overlapping in reverse order." (P. 279) Here it seems to include both a definition for split wing AND slipped wing.
APA SOP definition for Split Wing: "One in which there is a distinct gap between the primary and secondary feathers, resulting from the permanent absence of a feather [and its corresponding follicle]...." (P. 12)
Where the two differ, and I have had many conversations about these definitions with numerous judges, including Walt Leonard, Chairperson of the APA Standards Committee, is that the APA SOP refers to the cause as being a missing axial feather. The ABA standard only refers to an obvious gap, regardless of whether or not there is a permanently missing feather. The distinction, in my mind, is that one is a genetic cause and the other has multiple causes (poor condition, molting, broken or temporarily missing feathers, etc.)
So, when there is a degree of difference between the two -- the SOP supposedly being a DQ only for the missing feather/follicle, and the ABA standard being a DQ for any gap -- which one do you go with? Obviously, I mean to consider this in terms of exhibiting bantam breeds only.
Hopefully you see what I'm talking about. This may seem like a trivial issue, but it's got more than a few of us questioning the true meaning of the term "split wing" versus how the term is used in everyday chicken conversations. LOL