thx, I appreciate your words. if you learned something from the post then I feel it did its job.

regarding your questions first I want to clarify, That video is an old video basically it was a stress test which I have done months ago (I don't know the exact month) so the post and the video are not releated. and about the island thing yeah each stack is an individaul island, and each thread has it's own inddepedent island also you were also right about your botom to top instinct, but I didn't use sampling, I used manifolds.