I have played with XMR and had a wallet on mymonero.
There was an option of a "3 mix" or something iirc. Does this equate to 3 ring sigs?
Yes, mymonero has a restricted range of mix factors for ease of use as the UI is intended largely for less-technical users. I expect as it matures it will have an "advanced" mode or some kind.
Using the native wallet you can use any factor you want, even >100.
(Lamentably exchanges inc Polo only do a 0 mix? which I assume means no-anonymity?)
I'm told Polo is using mix 3 now? I haven't confirmed that myself though. BTW mix=0 isn't "no-anonymity" though, as stealth-addresses are always used. I would call it weak anonymity for sure.
How many XMR users have used 60 ring sigs? Or over 24?
These numbers are common in Shadow
Im assuming 24 or 60 is better than 3 or 6
And it is devilishly fast to boot. Have u tried the wallet?