Putter · Stable vs Understable
The Innova XD (3/4/-1/+1) and Prodigy PA5 (3/4/-2/+0.5) are both putters, and they fly similarly, with only minor differences.
Both are speed 3, so neither needs more power than the other to reach its flight. The XD is the more overstable of the two (stability 0 vs -1.5), so it fights wind and finishes harder to the left, while the PA5 flies straighter or turns more. Both land at a similar estimated maximum distance (about 63 m).
Choose the XD when you need to fight wind, throw forehand, or want a dependable finishing hook. Reach for the PA5 when you want a straighter line, an easier turnover, or more help at a lower arm speed.
Both are speed 3, so neither needs more power than the other to reach its flight. The XD is the more overstable of the two (stability 0 vs -1.5), so it fights wind and finishes harder to the left, while the PA5 flies straighter or turns more.
The XD is more overstable and finishes harder to the left; the PA5 flies straighter or turns more easily.