On page 154 Unwired in the section labeld crashing sprites it says:

"If a sprite suffers enough Matrix damage to fill its damage track, it crashes."

So I looked and then looked some more sadly I can find nothing that says how to determine how many damage boxes a sprite has so how do I know when it's taken it full damage track?

I assume it is just like agents.

I'd use the Pilot Rating as the System Rating for this.

So I'll run it as 8 + (Pilot rating ÷ 2 Rounded Up)

That sounds good to me Bishop