From What Paintball 2004
Pressure prior to shot (psi)
Centreflag; 801
Crossfire; 770
Lowest pressure during shot
Centreflag; 675
Crossfire; 662
Percentage pressure drop
Centreflag; 16%
Crossfire; 14%
Time to recover 95% pressure (ms)
Centreflag; 14
Crossfire; 10
Not a lot of difference there mate, and when you see some of the other figures on test, those two come out flying (the evil scion was probably next best...)
Hope that helps