just an additional thought (do you watn to pick it using Camerapick or Linepick?)
If you have to pick both the inner and the outer mesh then you may use a homebrew multipick. Pick in the wanted direction. If it hits something, then do an additional pick from this picked location in the same direction. Repeat until nothing is picked anymore. Store the picking data in an array.
If you have to pick both the inner and the outer mesh then you may use a homebrew multipick. Pick in the wanted direction. If it hits something, then do an additional pick from this picked location in the same direction. Repeat until nothing is picked anymore. Store the picking data in an array.