Posted for Tubamanflies@aol.com:

 I have had my bird a year and I thought I would give it a birthday present.
 I was considering a set of the TK-5 Air Oil Dampers that Lancair sell to
 replace the rubber donut.  I have also hear about Ong's Debongers that I
assume do
 the same thing.
 
 Are they both the same thing? If not opinions on each.
 
 Ray Gardner