Trick Flow 440 heads, The Real Deal?

I did swap out the Ti retainers for a set of steel retainers so the flat damper wouldn't
chew up the Ti. So far I don't see any problems at 7000 rpm with the steel retainers.
I was reading where if you dress the sharp edges of the flat dampers where they contact
the bottom of the Ti retainer that they will not chew up the retainer at all. Comments?