Well I've had my custom pair of Sparrow boots for a while and I love them.
I went with Pogue and Angel's advice to go with the womens 7,5 and I haven't regretted that :)
Here's some things I experienced with the boots that seem worthwhile sharing:
You need one of those long shoe pull on things (bare with me, my first language is Dutch and I have no clue what schoenlepel is in English) to get in your boots. Trust me, it's easier to get in them that way, much much easier.
Also, if you break them in, wear thin socks.
I got mine just when it started freezing and wore them with snow socks (which are MUCH thicker than my normal socks) which ment I had to break them in all over again with normal socks.
(if you end up doing what I did, I advise plasters to put on your heels preventively, or sports tape to put over your socks so you don't get blisters while rebreaking them in).
Photos when I finally get 'round to taking some :)