To me, the Saint appears to be Lat 64's Teebird rendition, albeit less stable. Looking closely and measuring the rim, the configuration(concavity, curvature, edge sharpness) between the two is identical, and the width is right at 1.8cm for both, despite claims of 1.9cm for the Saint, and some sources listing 1.7cm for the Teebird.
I own both, in champ and opto, and the Saint does not have better distance or glide than the Teebird. The Saint is NOT like the Diamond when it comes to glide.
The Saint is definitely straighter than the Teebird, with a later and more gradual fade.
Bottomline for me is that there's too much overlap to have both in the bag. Both very good discs, take your pick.