I saw this on IG today and I have a billet vacuum block. Soo instantly it makes me curious to go check mine. I apologize if there is already a thread on this tip, I did a quick search and I didn’t find anything right away. Well hopefully this helps anyone and if it does please give all credit to Steve V he has awesome tips on IG and I’ve asked him questions and he replies back and answers. I asked him first if I could post this tip with uploading vids on YouTube and he said I could.