When I went from 240/650 to 330/880 I ate adjusters and cups so fast you couldn't even start the car. While warming up I could hear it dropping holes and I knew it was eating itself.
I don't remember why, but I had the intake off and the adjusters out. I grabbed a pick and realized the hole in the rocker didn't line up with the hole in the shaft. Not only were the holes off radially, they were off left to right.
So I blued the shafts, marked the holes and moved them. Shifting at 8800 I never lost another one.