any problem with either rods in the Z? I know the Crower rods are suppose to be billet. Billet rods weakness is in the cap because the of the direction of the grain structure. The Eagle rod quality seems pretty good. I just wonder how they hold up to 800hp plus? The pricing seems too good to be true compared to others. The carrilo rods look very similer to the Eagle H-Beam but they cost $1600 for the set!