SF Warcomp # of Spacers necessary?

So when installing a Warcomp you have the flanged required spacer and then you have the green, red and no-color spacers. In the manual it shows the flanged spacer and 3 other spacers. Can you use just the flange spacer if it all lines up well or do you need use the flange spacer and atleast 3 or more of the other spacers for it to torque down and grab correctly? Just as an FYI right now the flange spacer and the thick green alone seem to have a perfect alignment and first time in 20 barrels its been this simple... just wasn't sure if that was too few to work properly. Thanks!

I accidentally put this in the Technical forum so I moved it... oops

See existing thread in AR Technical.