Wtf - roller rocker

Hi there,
I spent a fair bit of time getting these to fit correctly.
At first, they sounded a little noisy, kinda like an overgrown sewing machine. Readjusted and not as bad.
Gave it a good test out, you know 5500 rpm gear changes etc and that's when the #8 intake pushrod jumped out and also spat the lifter out of its hole. Luckily I was just around the corner and quickly shut it down and coasted back into my driveway. Pulled intake off, no damage to pushrod or lifter or the rocker cup. Put it back in, readjusted them all again and was fine for a week and she started getting noisy again. Readjusted and gave it a boot full. Same issue again but on #4 intake. No damage just like last time.
I'm going to try 0.08" on intake and 0.12" on exhaust in the morning and see how that goes. I'm not going to stuff around too long on this issue. If it continues I'm going back to a decent hydraulic cam, lifters, STD length pushrods and original stamped steel rockers.