After reading through this thread, I just have one more suggestion. You should use single-element queues to hold your data. This will allow you to pass it around easily (just a queue reference or queue name). Single-element queues do not create copies when you dequeue an array, so memory management is better. The single-element aspect helps prevent race conditions (when you dequeue the element, no one else can read it until you enqueue it again). In my tests, the single-element queue outperformed (access speed) the LV2 global by about a factor of five. It outperformed front panel controls by almost two orders of magnitude. Details on use are in the tutorial on large data handling already mentioned in this thread.
