In reply to Euan McKendrick:
Thanks for your reply. I did use it before buying and it came out to 8.5 based on the la sportivas I've been wearing. I tried it both ways (based my current climbing shoe and street footwear) and it came out 8.5, although that was for 'super-snug' fit based off street footwear size, but as I mentioned, I can't even get the 8.5s on. Thinking perhaps I should go up a whole size because half a size increase would probably be extremely tight, just seems a bit strange to be that far out.