Anyone using 440 Source 1.5 Rocker Arms?

They make plenty of good stuff, however I had very bad luck with their rockers, even were used on their heads. Fortunately I took the motor down for upgrades and discovered the carnage before they wrecked the motor. What I found was the needle bearings were destroyed which ate into the shafts, several roller tips were flat and had ruined the corresponding valve tips. This was after about 15,000 miles on a 383 with great oil pressure. I got to clean it all out of the pan... if you can afford Harland Sharps... or something along those lines I highly recommend passing on the 440source ones.