If anyone is listening,
I just created a new DNN 9 site with OWS and it seems to work great.
You have to add the connection string to <appSettings> region on web.config, as this was removed on DNN 8, but once that is done all is good.
Even better is that using OWS to manage logins seems to work with Hashed passwords, this was not working in DNN8
Seems there is life in OWS still. Well done Kevin for creating a great module