Why TPU 95A.
PLA cracks. ABS is too rigid. TPU 60A flops. TPU 95A is the sweet spot.
Why not PLA
PLA is rigid and brittle. A first strike from a driver will shatter the splay feet. Even reinforced PLA blends fail within 50 strikes.
Why not ABS or PETG
Less brittle than PLA, still too rigid for the splay-foot geometry. Foot detachment under load is the failure mode.
Why not TPU 60A or 70A
Too soft. The stem cannot hold a ball upright. The tee folds under its own weight before you even swing.
TPU 95A
Shore A 95 is the firmness of a hard tire compound. Stem holds the ball steady. Feet flex on impact and return to shape. The same material is used in shoe outsoles, automotive bushings, and protective phone cases. It is the right answer for this application.