Tour Edge Hot Launch HL4 vs Tour Edge Hot Launch E521
Side-by-side factory specifications. Differing values are highlighted.
Tour Edge Hot Launch HL4cast cavity back with an expanded undercut cavity and toe weighting · 431 stainless steelTour Edge Hot Launch E521hollow-body iron-wood with perimeter weighting, Houdini Sole and a super-shallow face · stainless steel hollow body
Specification comparison
| Club | Hot Launch HL4 loft | Hot Launch E521 loft | Hot Launch HL4 lie | Hot Launch E521 lie | Hot Launch HL4 length | Hot Launch E521 length |
|---|---|---|---|---|---|---|
| 3 | — | 20 | — | 60 | — | 39.25 |
| 4 | 22 | 23 | 61 | 60.5 | 38.75 | 38.75 |
| 5 | 25 | 26 | 61.5 | 61 | 38.25 | 38.25 |
| 6 | 28 | 29 | 62 | 62 | 37.75 | 37.75 |
| 7 | 31 | 32 | 62.5 | 62.5 | 37.25 | 37.25 |
| 8 | 35 | 36 | 63 | 63 | 36.75 | 36.75 |
| 9 | 40 | 40 | 63.5 | 63.5 | 36.25 | 36.25 |
| PW | 44 | 44 | 64 | 64 | 35.75 | 35.75 |
| AW | 49 | 49 | 64 | 64 | 35.75 | 35.5 |
| SW | 54 | — | 64 | — | 35.75 | — |
| LW | 59 | — | 64 | — | 35.75 | — |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The Hot Launch E521 is the weaker-lofted set — up to 1° weaker than the Hot Launch HL4. That trades raw distance for a steeper landing angle and more predictable stopping power into greens.
Both charts are reproduced in full on their own pages: Tour Edge Hot Launch HL4 specs and Tour Edge Hot Launch E521 specs.