Me 109 question

[klemchen]

Hello,

under

http://kurfurst.org/

in Internet you can find various Me 109 test reports. In particular, under

.../Performance_tests/109G_Leistungszusammenstellung/Leistungszusammenstellung109G.html

there is a performance compilation of the effects on the Me 109 G of various modifications. After the performance tables a description of the Grundausführung Me 109 G-1 is added (probably of the test aircraft), and on Blatt 3 (sheet 3) there is a paragraph

Lichtbilder (photos): Abweichungen von der Ausführung G-1 (deviations from the variant G-1): ... Randkappen wurden vergrößert (wing tips were extended).

Unfortunately the photos are not present. Is there anybody who knows something about those extended wing tips? If it were about an early F instead of a G, I would think the document is referring to the standard rounded wing tip because originally the F was designed with wing tips similar to those of the E, but since the G had the rounded tips from the very beginning, the report must be referring to something else.
It would also be interesting to know why that test aircraft was fitted with extended wing tips and why these were not adopted for production.

Regards,
klemchen