FWIW, the C.VI under restoration in Brussels has loz rib tapes. See
www.wwi-models.org/Photos/Ger/LVG_CVIAlso, there is some question as to the use of "blue on top, pink on bottom" when it came to solid color tapes. Oft times it was one color all the way round, with a lot of variation between aircraft types/subcontractors, so whatever you choose, I don't think any of the Rivet Counters will be able to prove you wrong. Nice decaling job, BTW. Loz really requires patience and skill (How many air bubbles did you have to poke?) ;-) (and why is there no simple "wink" emoticon here???)