Ultimate Facebook - Help with registrations and multisite

Been testing out the ultimate FB plugin, which is super cool.

Have a few questions though that are partly covered in these threads:

https://premium.wpmudev.org/forums/topic/facebook-connect-mutlsite-clarification

https://premium.wpmudev.org/forums/topic/setting-up-ultimate-facebook-plugin-with-multisite-questions

When done testing, I want to set Ultimate FB up on my buddypress multisite.

DavidM mentioned that the plugin will create a user on that particular subblog that they register on.

How will that affect the profile on the main buddypress site then?

So let's say my new member subscribes on a subblog, where is there buddypress profile created then?

Still at domain/members/newmember?

Is there a way to set the plugin that the registration and profile creation takes place on the main blog rather than the subblog?