Probably my thread you were following. Let me explain what I did. Not sure if you rebuilt your bumpers but this may help if you did.

Pop bumper was energized on startup so I replaced Q69 and Q68.

Pop bumper linked over to Q75 which was my left sling replaced this transistor

On startup I blew Q69 and it killed the above resistors (95-98)and slo-blow

Replaced resistors and U45 IC and all previously mentioned trans.

Before startup I removed my pop bumper one more time because I knew it was a problem under the playfield. Turns out I mistakenly reversed the 2 holders on the coil rod that go between the fish tape and concave switch from the pop bumper. In other words the metal side of those two was hitting the metal on the leaf switch shorting it out. The wood side should push into it. Slapped myself on the forehead and everything is good now...well not 100% but we are getting there.