I'm getting 5.12V at TP1 on the solenoid driver board.

Maybe I should check the MPU board itself.

The flippers themselves haven't ever been weak (I don't think).  They still kick just as hard as ever. It is other solenoids that have the problem - i.e. anything that is "driven" by the boards.

I reflowed all the connectors and recs on the powersupply board a few days ago and test points and seem pretty close on.  If fact I reflowed nearly every joint on the dang board down there.

The fact that it was allowing the flippers on (at full strength) during attract mode and randomly firing coils makes me think that something is wrong with the MPU.  It sounds like screwy control messages coming through - but I guess you are right, voltage weirdness can do weird things too.

i've put in an order with Mark for the Alltek.  We'll see how that goes.

...but don't let that stop the suggestions.  

Thanks.
Matt.