Talisman, I am a bit surprised by this however I was aware that there was some contention as to the benefits of clipped wing.
I do wonder if the benefit was none existent why did supermarine continue to produce it, it must have had some benefit.
Regarding the mk24 wing, you cannot use it as evidence of the benefit of clipped wing, yes it was squared off however crucially it was longer IIRC as the standard wing.