Finding a DHS shaped blade is easy, as it's pretty widely used by a number of manufacturers
The key features of a classic DHS shape are:
- 260mm blade length
- 150mm playing surface width
- 100mm long handle scales
- 30mm wing length from top of scale to fulcrum
- A slightly more oval head profile (compared to a Butterfly or Donic)
A combination of the Wing length and that slightly more oval head profile is the easiest ways to spot one.
These differences are subtle viewed in isolation, but are far easier to spot with a side-by-side comparison:
View attachment 25088
The four blades above are arranged in descending wing length order -- longest wings on the left, shortest on the right.
All blades are between 257mm - 260mm long, and have a handle length between 100 - 105mm.
You measure wing length by how far the wings extend down the handle. You start at the very top of the handle scale (where the rubber and handle meet) and go down as far as the fulcrum (ie: the bottom-most point of the wing's triangle - it's the point where the outer edges of the blade's profile meets up with the edge of the handle)
Blade 1 was made by Loki -
Wing Length: 40mm
Blade 2 was made by DHS (ie: the classic DHS shape) -
Wing length: 30mm
Blades 3 and 4 were made by me:
- Blade 3 is a 6.5mm one-ply with a custom hybrid shape of my own design - Wing length: 20mm
- Blade 4 is a custom clone of a Donic Cayman (balsa core & medials | Blackheart Sassafras outers). It features a classic Donic Shape - Wing Length: 15mm
If you compare blades one and four, the difference in their wing length is obvious.
The difference in wing length between blades 1 and 2 or blades 2 and 3 a bit harder to spot at first, but a measuring tape tells you there's a 20mm difference between 1 and 3, and a 10mm difference between 1 and 2.
As for head shape, if you compare Blades 1 and 4 with Blade 2, you can see that Blade 2 is significantly more oval shaped than blade 1 or 3 but is very similar to Blade 4 - but if you were to see them up close (or better yet lay them on top of each other) you'd see that blade 2 is slightly more oval than Blade 4.
Butterfly, Donic and DHS shapes are all quite similar if you only look at their head shape - its the longer 30mm wing length on the DHS blade that gives them away.
Hope this helps