If you want to take part in MISO12 but you are not sure if you can or will make it, please register now and change your registration later as and when things get clearer. The registration form allows you to do this by not constraining you to a binary Yes or No response but offering a number of options in between, such as Very likely, Likely or Possible.
Technically, it is very easy to change your registration since you can edit your original registration without having to fill out and submit the registration form again. All you need to do is not to delete the automatic email you receive with your first response and use it to edit your registration as often as you need to. You don't have to contact us about your changed registration.