BMW R1200RT/R1250RT Forum

There is definitely something going on in your fuel tank to be getting through that number of strips.  I'm surprised whoever is doing the warranty work hasn't dug deeper to find the reason. 
Unless it's some kind of contamination in the system I can't see the two issues being linked.

All the fuel stripes have been done at BMW Bahnstormer Alton and to guy i spoke to when i booked her in said they will give her a full check over on the 29th but that was before the idle problems.I have E-Mailed bmw uk about the stripe problem but they basically dont want to know.
gary