Add Registration Settings form to Product initial creation form

I've added a Registration Type to a Product Type (to allow players to register for sports tournaments). This Registration Type ('Player') is set to be the default type in the registration field, and set the default value for Registration Settings to 'enabled.'

No idea if I've encountered a bug... but when I create a new Product (an instance of my Product Type), the Registration options are not visible (ie, the form containing the various text fields for scheduling, reminder, multiple users etc). All that is rendered is the dropdown of selecting the registration type. However, if I save the Product, then edit it, the subform for registration settings is now available to be edited (albeit in a collapsed fieldset).

I had a peek at the $page array (both before and after) and the said form ($page['content']['system_main']['registration_settings']) is only present after the Product has been saved once.

I'm sure when I've used this before that the registration settings sub-form was available on Product initial creation (and it would be a crazy UI for the Store Admin to be anything other than this). Is there another display setting I should be looking at to ensure it's displayed? Have pulled the site apart looking at every conceivable setting and none the wiser.

Have tried both 7.x-2.0-beta2 and latest DEV version (17 Aug 12).

If anyone has any thoughts I'd be grateful if you could pass them on.