Seems you already got the answer for the 2nd question, so ill answer the first.
DoM wrote:
I do not know what size it is in PHX/Construction props, but you should know how big a head is by looking at it. You could get a friend to help you to see if you can see the Whole head or not. Just use common sence

Seems you already got the answer for the 2nd question, so ill answer the first. [quote=DoM] [color=yellow]•The size of a shooting window cannot be a small crack; you need to be able to see all of the head.[/color] Q: Is a 1x1x1 PHX Cube sized gap between two props considered a crack? My gaps are usually about 1.5 of those, so in reality its a 1.5x1.5x1.5 block(dont exsist) space. If you don't know how big that is, please spawn it in game before answering. [/quote] I do not know what size it is in PHX/Construction props, but you should know how big a head is by looking at it. You could get a friend to help you to see if you can see the Whole head or not. Just use common sence ;)