I don’t, but I understand what’s so special about them!
Basically they have a little bit more mass than a 5 fin, which helps them roast a little more evenly and stay hot a little longer. I believe the last run of 7-fin also had more restrictive airflow grooves, but still had the Omni compatible taper
Apparently the Vong tip is the same weight and performs somewhat similar but with a more open airflow, I’ve seen that thrown around a few times now
Personally I wouldn’t buy one for 77, for not too much more money you can get a whole other vape like an XMAX or Vapman