No matter what the answer to his question would be, everyone would have a different answer. I would say go .5 up. Others say TTS. Which again is all discussed throughout the thread lol. I have no problem answering questions because Lord knows I have had many answered mine, but my point is there is no need to post a question that could have been answered by taking some time to read the thread youre posting in, that's all.
And I think its a good idea what you propose, but as mentioned before, all sizing depends on your foot. Some may go TTS and others may be 1 whole size up. Truly depends on the foot.