Banana grooves..

I have been using adj rockers on Hyd liters. (flat tappet and roller) for me, it not a waste to get the right push rod length and set the preload of the lifter were i want it.
If your building a bone stock eng then maybe they would be a waste........but if i had them i would be using them even on a stock rebuild.
O wait were taking about banana grooves.............I like bananas, Never had enough spring pressure to think much about them................