Cheap Ebay roller rockers. Too good to be true?

If you want to safely play with these, have them bushed instead... and now you have almost enough into them to have just bought good rocker arms.
Dang MO... you just got me inspired about how to make use of the PQ rockers I have.... thnx! (Gonna try it here.... nothing ventured, nothing gained, and nothing to lose at this point; I won't dump them on someone else.)

Any idea on an appropriate bronze to use?