What's the difference between the original Spikeball set and the Pro kit?

Across r/spikeball threads, regular players consistently say the Pro kit has a tighter, flatter net for more predictable bounces, sturdier legs that don't bounce off the ground on hard hits, thicker plastic on the outer ring, and grippier balls. The Original 3-Ball set is still the most-recommended entry point because it's cheaper and the gameplay is identical; the Pro upgrades matter most for competitive players.