No idea. I'm in a similar position - waiting to hear if I will get a Masters studentship. My view is that there is nothing I can do to change whatever things they look at (e.g. degree class) so best just to forget about it! Am assuming I won't get it and saving accordingly, so if I do it will be a pleasant bonus. Just keep working hard, get the best grades you can, write the best application you can, and that's all you can do.