I found something interesting about the 808’s.
Typically I’m between a 9.5 and 10 in most models.
440V2, 600, 1010 (colourway and material dependant), 508 - size 9.5
808, 1010 (usually suede versions) - sz 10
I noticed when I took the insole out of the size 10 808’s the insole is sized for 8.5-9.5 The 10.5 has the 10-11 insole.
The sizing on the 808 is odd and messes with me however It’s by far my favourite skate shoe of recent years