In reply to French Erick:
You really need to blend in with the surroundings, like the Russians on the Eastern front, so Arctic white.
A line bandit should not be seen, or appear to be the competition, walk in wearing casual clothing, using stealth an Addidas tracksuit and trainers will fit the bill, carrying a holdall with the climbing kit. other climbers just think you are lost neds, change below the route under the cover of darkness, snake the line, if conditions are poor, you can always return, like the chameleon you will not be seen. The local guru might think he saw something just below the cornice as he walks by, but he has had a hard day doing winter skills and thinks he is hallucinating.
The only thing the local hot shot will really see is the entry for the FWA of that last great problem in the journal, he will be a broken man.
Post edited at 11:32