i have this model boost controller..the bleeder hole isnt on the B/C itself
http://www.dejontool.com/images/DSM-...BC2A_small.JPG

if you look at the picture carfully in the supplies they send along with the B/C theres a extra white plastic fitting ..that one has a bleeder hole on it...which replaces the white fitting on the far left of the screen if your fighting a big spike it may or may not eliminate it fully but it will prolly bring the spike down to a 1-2 psi range