Cdiem > guidi any day of the week
for a 43/us10 you need a size 45 in guidi, don't get a 44 unless you cut off a toe. ok seriously though here is the sizing
laceup +1 - 1.5 from your size
double heel backzip could be +1.5
if you cannot wait for cDiem, get ma+ backzip, best current backzip out there.
what are you looking for? clean aesthetic or distressed?
ma+/guid is clean
CCP kinda in between
also order your guidi from Holger or PN\P, you can't wait for delivery?
I've sized up 1 on all the Guidi's I've owned (various back zip, side zip and derby models) and been fine.
Are Carpe Diems a better option than Guidi? There are some nice looking models of Guidi available new for $1000 to $1200.
The Archive in SF has a lot of Guidi so I plan to stop by and check them out when I can find some time. I usually wear a 43 or 10. The Archive recommended I go with a 44 because Guidi run small.
showrooming ain't cool bro..