Ahh defence of the Reich bands. Correct they did change from unit to unit. My fave JG27 had a nice green band, often mis-coloured as a very turquiose shade, pity really as I quite like turquiose.
Personally I'm not too sure of Luftwaffe kill ratios. In the desert there are accounts of JG27 machines dowing Bostons or whatever yet there are no British records of that particular type of aircraft flying at that time. So take the amounts scored with a tiny pinch of salt and certainly during the final breakdown.
One final things on the bands. Anyone who does Luft 46 cheese think about what bands to put on...mainly we use proper Geschwader/theatre markings since we go on the theory if the Luftwaffe has in th words of the Mighty Hood "Those incredible Thunderbirds machines..." ooops sorry...those incredible machines were available and made in reasonable quantities the Third Reich wouldn't be in the dire position it found itself during '44-'45. For this reason a 262 in Desert scheme, hmmm wonder what the tiger stripe JG27 109E4 scheme would be like on a 262? *giggles* sorry my tiny brain is woking overtime, 262 in desert scheme could be well within a logical "story" as regards to unit/theatre markings.
Reich Defense
The Hikoki book on Luftwaffe colours and markings is a great reference and well worth the money.
Hope this helps.