I think you made the right move. I concur on the IPP recomendation. I have had my TT for about 9 years now and I have always heard good things about them on tt.net.
Haha, actually that isn't my Z in the pic of the bike rack. Someone was asking if it could be done on the forum and I my wife and I drove by that set up the next day. I had her hanging out of the passanger window like a lunatic to get that shot. I think the driver thought we were nuts... we where in the Xterra, not a Z at the time. I do have a swing away Yakima for the X though.