I've been playing some more. Muun to Phoenix for 70,000 was 3 sats... the first time
Phoenix back to Muun was 392 sats
Then I downloaded wallet of Satoshi I sent 50,000 both to Phoenix and WoS Pheonix was 172 sats WoS was 429 sats...
I sent 20,000 sats from Phoenix to WoS for sats. I sent the entire balance from WoS to Phoenix for 47 sats. And now I'm running into a problem where Phoenix fails payments about 80% of the time over 10,000 sats back to WoS and costs about 7-8 sats per transaction.
I also sent a couple 40,000 sat tx from WoS to both muun and Phoenix and both cost one was 4 and one was 7 sat fees.
I want to like Phoenix but the failed transactions I've been having since really digging in and not knowing what the fee will be, with wild swings in fees, until after it is sent is kinda of putting me off.
I guess I just need to play around more. But yes I am encountering the high fee on muun as well so I'm not hell bent on defending anything. Just burning sats experimenting.