Mizuno RB 566 vs Srixon Z-Star XV
Which is right for your game?
Mizuno
RB 566
value ionomer
Compression
70 (Mid)
0 120
Srixon
Z-Star XV
tour urethane
Compression
102 (Firm)
0 120
Spec comparison
Spec
RB 566
Z-Star XV
Compression
70
102
Cover
ionomer
urethane
Spin
low-mid
mid-high
Feel
soft-mid
firm
Construction
2-piece
4-piece
Category
value
tour
Swing Speed
75–98 mph
105–130 mph
Price tier
Budget
Premium
Choose the RB 566 if…
- ✓ You have a slower swing speed or prefer a softer feel
- ✓ You want strong performance without tour pricing
- ✓ Budget matters — the RB 566 costs less per dozen
- ✓ Entry-level Mizuno with 566-dimple consistent flight
Choose the Z-Star XV if…
- ✓ You prioritize short game spin and greenside control
- ✓ You swing over 95 mph and want firmer feedback
- ✓ High-compression Srixon tour ball for the fastest swingers