The only fool proof way is to switch to solids.
As has been mentioned, the oiling system as a whole is a bit flawed is several places which can cause too much air getting into the oil and colapsing the lifters. Making sure the line that goes from the pump to the block isn't leaking is the first thing to check. After that it's all band-aids, like trying to figure out which lifter it is and cutting a small groove on the side of it to try and relieve some of the air, which in turn drops the oil pressure available and is not capable of any consistancy. You don't want to do it to all of them. A friend of mine has this problem, and he switched over to Quaker State "Hi Milage" oil and hasn't seen the problem since. Not entirely sure that's it, or if it is a coinsidence, since the problem isn't very predictable in the first place.
