 
   pullBucket : (bucket_x, bucket_y, bucket_z, zoomStep) ->
 
-    pullLoadingCount = @pullLoadingCount
-
+    @pullLoadingCount++
     console.log "requesting: ", [bucket_x, bucket_y, bucket_z]
     Cube.setBucketByAddress3(bucket_x, bucket_y, bucket_z, zoomStep, Cube.LOADING_PLACEHOLDER_OBJECT)
-    pullLoadingCount++
 
     @loadBucketByAddress3(bucket_x, bucket_y, bucket_z, zoomStep).then(
 

        Cube.setBucketByAddress3(bucket_x, bucket_y, bucket_z, zoomStep, null)

    ).always =>
      pullLoadingCount--
      @pull()

  loadBucketSocket : _.once ->

    queue.length = 0

  pull : ->
    { queue, PULL_DOWNLOAD_LIMIT } = @

    while @pullLoadingCount < PULL_DOWNLOAD_LIMIT and queue.length
      [x, y, z, zoomStep] = @removeFirst()

      unless Cube.isBucketSetByAddress3(x, y, z, zoomStep)
