Wtf - roller rocker

I have the same rockers but no driving time yet on them. Just engine-stand time.
Before installation I gone over the rockers and cleaned, broke any sharp edges and generally smoothed them up a bit.
But my main concern with these things are the adjusters. They don't seem well designed and the huge oil band in their center sure removed a lot of threads I think would be needed better.

Is the rocker alignment over the valve tips good?

I have these on a hydraulic cam but I'm thinking of modifying the lifters into solids for better control.
I hardly ever go by what the camcard lash specs say. Most of the time there's just too much lash I found. Usually I tighten them a bit until they 'sound good'.