Need help with Gorilla Lock wheel bolts, length?

[elude]

Hey Guys,

I'm planning on ordering some OEM ZCP Wheels, and looking at the Gorilla "The Original System" wheel bolt system. Its all (20) wheel lock bolts with just one key. I used to have the same setup on my S2000, and loved it.

In looking at the spec sheet (bottom of the page):
http://www.gorilla-auto.com/the.system.new.box

First, in planning for OEM ZCP wheels, I'm assuming a Cone Seat will work with the wheels? Not Ball Seat, correct?

Second, I know I'm gonna use a 12mm x 1.50 thread size, but what size am I looking for the "Length under the Seat?" I.e. .93" 1.10" 1.30" etc.

Thanks in advance