I think all brands have blades with the 7-layer wood structure. Clipper is Limba-5xAyous-Limba. I have the Yinhe Purple Dragon 437 and the Sanwei Fextra. The Fextra has a thicker handle and 2x Limba/3x Ayous/2x Limba. Everyone I know who has one loves it (read the reviews). Megaspin has it for $35, princett for $20 (but it takes 2-3 months to get to the USA from Hong Kong). The Fextra is a little faster than the 437 PD (also a little higher pitch without rubbers) but they are very comparable although the Fextra handle is thicker than the 437 PD which is thicker than the typical Yasaka handle (e.g. from the Ma Lin Extra Offensive). Also the Fextra and 437 handles have a more rectangular cross section compared to the more elliptic Yasaka handles.
I love the control the Fextra provides (due to the softer top layers) but it has the speed when needed (I play close to the table Mima Ito like with short pips backhand so I don't need extreme speed from the blade). The 437 PD is OK too, I play it with the DHS Hurricane Neo and the Yinhe Pluto short pips on the b/h.
So I think the Fextra is a good recommendation...
As usual I sand the edges off with 100/250/600 sandpaper and then varnish the blade with WalMart MinWax polyurethane satin coat before putting the rubbers on, this way I can wash it after playing in detergent & disinfectant.
Also, the handle shapes are different between the various blades. I always use tapered handles, and I measured the width and thickness at the neck (the end of the handle is irrelevant for holding). Also the thickness of the blade. These are some of my blades (weight without rubber, neck width * thickness in mm, elliptic or more rectangular, blade thickness in mm). The Fextra also feels like the thickest handle because it is more rectangular and 2mm thicker than say the Purple Dragon 437:
- Yasaka Battle Balsa, 75g, 28.6/23.6/ell., 6.4mm
- Yasaka Ma Lin Soft Carbon(1305), 89g, 28.5/22.7/ell., 6.0mm
- Yinhe PD-437 (1356-1432), 88g, 26.9/23.4/rect., 6.5mm
- Sanwei Fextra (1356-1376), 95g, 28.4/25.5/rect., 6.4mm
- Yasaka Ma Lin Extra Offensive (1378-1400), 86g, 28.6/23.2/ell., 6.0mm
- Yasaka Goiabao 5, 90g, 28.4/23.0, ell⇒rect., 6.3mm