Another confirmation of PBL Shaker motor not working on the Iron Maiden. Slam tilt game one.
For those getting stuck balls on the drop targets, check to see if the target is flat with the playfield, mine were not, you can adjust the height with the 2 screws on the mech.
Also the top up post was not level with the playfield and I had to adjust that.
Made an adjustment on the shooter lane as well, auto plunge is working good now. Manual plunge seems to suck due to not enough spring tension.