Mast Tuning for “OLD” Mast:
These are the shroud numbers we recommend for most wind
speeds:
| Apparent Wind Speed | Upper | Lower |
| 0-7 Knots | 22 | 17 |
| 8-16 Knots | 26 | 22 |
| 17-26 | 30 | 26 |
New Mast Tuning
Original Loos Gauge -C
| Apparent Wind Speed | Upper | Lower |
| 0-7 Knots | 28 | 14 |
| 8-16 Knots | 30 | 18 |
| 17-26 Knots | 34 | 28 |
Pro Model – A
| Apparent Wind Speed | Upper | Lower |
| 0-7 Knots | 23 | 9 |
| 8-16 Knots | 25 | 13 |
| 17-26 Knots | 29 | 23 |