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Loft options, stock shafts and specs for two fairway woods golfers cross-shop. Callaway Quantum Triple Diamond and Cobra OPTM LS each have a full page.
| Spec | Callaway Quantum Triple Diamond | Cobra OPTM LS |
|---|---|---|
| Category | Tour | Tour |
| Model year | 2026 | 2026 |
| Loft options | 15° to 21° | 16° to 17° |
| Adjustable hosel | Yes | Yes |
| Stock shafts | Mitsubishi Diamana D 60 | Mitsubishi Diamana D 60 |
| MSRP | $380 | $350 |
| Technology | Low Spin | Low Spin |
| Loft | Callaway Quantum Triple Diamond | Cobra OPTM LS |
|---|---|---|
| 3W 15° | Mitsubishi Diamana D 60 (stiff) | - |
| 3W 16° | - | Mitsubishi Diamana D 60 (stiff) |
| 4W 17° | - | Mitsubishi Diamana D 60 (stiff) |
| 5W 18° | Mitsubishi Diamana D 60 (stiff) | - |
| 7W 21° | Mitsubishi Diamana D 60 (stiff) | - |
Stock shafts shown are the representative options on file for each loft; retailers and fitters carry more.
On paper these two have more in common than not. Both are 2026 tour fairway woods, both are tagged low spin, both have an adjustable hosel, and both ship with the same Mitsubishi Diamana D 60 stiff shaft. The real split is loft. The Cobra OPTM LS comes in just two options, a 16° 3-wood and a 17° 4-wood, a narrow band for players who want one strong fairway club. The Callaway Quantum Triple Diamond spreads across three lofts, a 15° 3-wood, an 18° 5-wood and a 21° 7-wood. That 15° head goes lower than anything Cobra offers, which suits faster swings that fight spin, while the 21° option adds a matching club higher in the bag. Price is the other gap. The OPTM LS lists at $350, the Quantum Triple Diamond at $380.
If you want a single low-spin 3-wood in the 16° to 17° window and would rather keep $30, the Cobra OPTM LS is the sensible pick. If you swing fast enough to use a 15° head, or you want the option of a matching 5-wood or 7-wood later, the Callaway Quantum Triple Diamond is worth the extra money. Feel and forgiveness can only be settled with a fitting, since the shaft and spin profile are the same on paper.