Supressing Fire, real or imagined

[Steel God]

I have the very odd feeling that suppressing fire really, really works in PzB.  I know that in my PzC mind, suppression only really works by soaking off the defending units 3 shots, or inflicting losses and fatigue to degrade the units performance.  But what it feels like to me in PzB is that while OpFire is unlimited in the defensive phase, the units effectiveness in that defensive fire can be effected by suppressing fire maybe even if the fire is "no effect".  It could be my imagination, but in my limited experience it certainly feels/seems that I have better luck advancing on position and take less losses and suffer less disruption from defending units when I lob a little mortar and MG fire into the hex before moving.  I don't need to cause many or any casualties, the mere fact of getting the fire into the hex seems to help (like in the old Squad Leader board game). 

Anyone think I'm crazy?