I lost one in the fall of 2008. I had just switched cams to a Comp XE295HL, I removed the inner springs, used their Comp 159 break in oil, did everything by the book and still wiped a lobe. Metal got EVERYWHERE in the motor, destroyed the oil pump, metal shavings got slug up into the piston skirts and dragged up and down the cylinders scratching them up bad...had to tare the whole thing down and clean it, replace pistons, bore it, hone it, replace oil pump, replace bearings, etc.
I ended up going roller after that, and stroking it, and porting the heads, and getting a looser converter.....major Snowballing effect on the rebuild, LOL!. Oh well, I went from a mid 12 second car to a mid 10 second car...good times :D. No more flat tappet cams for me.