Quoted from Gerry:The funny thing about all this magnitized bracket stuff is, that BH is the ONLY SYS80-80B i have ever had a sticky pop bumper on...
I was able to disassemble rebuild,and reassemble making sure everything is lined up and working smoothly to solve the problems..
the lowe center pop in the upper PF had the wrong bracket on it... the mounting positon for the coil itself was off center, thus making the plunger assembly bind...My game was in a basket when the guy i bought it from got it..
he had piles of blown out spare PF's aroung from other gottlieb titles, and apparently used the incorrect bracket...
visually it looked the same when in the game but when pulled it became obvious it was wrong...
swapped out with the right one, and bang problem solved...