Maybe you are referring to the feature to chose how much % goes to each address? I like that and I don't remember to see this elsewhere
Also, you can set different timers for each address. As I know, I've seen this before on mixers, but I can't confirm how it looks on other currently active ones. Support all types of Bitcoin addresses...
Well, the fee going to 11 sat/vB
currently, it seems that we will have somewhat more favourable conditions for testing the mixers services.
