Failsafe activation on a Blitz SBC I-D iii

[Shuasha]

I've been messing with this for a bit. I have an HFS-5 and am wanting to configure the fail safe. It appears that the dual solenoid for this boost controller won't drop down to spring pressure when I cut power to it, in fact, it causes an overboost.

Does anybody have any experience with these dual solenoid units? My guess is that cutting the power to the unit will also cause an overboost condition.