Also, overall, what's your experience with BTC Lightning as a payment method in betting sites? Would you recommend it?
Lightning payments is very good option when bitcoin fees are high and when someone is betting with small amounts of money, and I would recommend it in this situations.
Maybe you can add new casino website I saw today in forum Getsats.club.
This is their forum topic:
https://bitcointalk.org/index.php?topic=5489513.0