Okay, it sounds like there is enough interest in why Sweep1 and Sweep2 fail on tapered threads. I will make some example files to demonstrate this. I’ll put in in a separate thread, and point to it when ready.
Please note that Sweep1 and Sweep2 will work on straight threads.
(NOTE: If this isn’t obvious to you, don’t worry, I got it wrong too. It was only after struggling to create my first tapered thread, did I realize what was wrong.)