Have created a registration page to which Membership directs new signups: http://writeisland.com/membership-registration. Problem is that the 'create an account' link in the dropdown Our Community panel points to http://writeisland.com/register/
Have got as far as looking at buddy press-panel.php and finding the ref to BP_REGISTER_SLUG in line 24; but I don't understand how to modify in order for it to point to the the new registration page.
By the way - spent hours today trying to figure out why my site would not allow users to create their own blogs, before finding this post: https://premium.wpmudev.org/forums/topic/studio-theme-bug-in-custom-blogs-slug. On doing the suggestion, it fixed the problem. Is the dev going to update the theme?