OK, here's the deal. I've been using Smok pre-punched cartos with iTaste VV3s and they work great. I just purchased a Copper Stingray clone and I wanted to get some cartos without flanges so it would be flush and I was also afraid the flange would scratch up the top of the mod. I bought some Boge punched cartos and tried one on my new mod. I was not happy with it at all. There seems to be much less vapor production and it just seemed like it tasted funny. I went back to the Smok cartos, but there's now a gap and the top of my mod is getting some light scratches. I would buy some IKenVapes Platinum cartos, but they are out of stock. The only other option I can think of is to buy some standard Smok cartos and punch them myself. I've never tried this, so I'm not sure how it works, compared to the pre-punched cartos. Are there any options that I've missed or any comments?