Thanks for working on this, OSTexo. Aside from the fillets (which I just added; thanks for the idea), I'm not sure what you're doing. I won't impose by asking for a video. I have what I believe is a working solution for now. I don't think the flow will be a problem (the tube just has to pass a single M&M candy every few seconds). If it becomes one, I'll come back here and revisit.