I am trying to decide if I should go with pushrod oiling with my solid roller or not. This will be a small 308R Comp cams roller in my 493 for the street. It is .575" lift and 262 duration @ .050". Are there any drawbacks to pushrod oiling? Why aren't more companies making them? Is it not necessary? I was also going to groove the #4 journal for full oiling to the rockers. Any help or oppinions are greatly appreciated. Thanks!!