spyken :
How do Martindales compare to traditional parangs / goloks sold by valiantco, such as the borneo parang or survival golok?
The Valiant blades have full convex grinds and work much nicer on thick woods. They achieve the same level of penetration as as similar sized Martindale, and are *much* smoother during the cut (less shock) and much more fluid in the wood. On grasses and other light vegetation there is no advantage to the cutting ability of either.
The Martindale will sharpen easier assuming you keep the full convex grind on the Valiant, if you put a secondary bevel on the Valiant they are similar in ease of sharpening. I personally much prefer the handle shape on the Valiant to the standard Martindale grip, finding it more ergonomic over long periods of use, specifically the downturned end. However with a little work you can get a similar handle on the Martindale, and Martindale does offer a near idential handle shape on some of their models.
The only problem I have seen with the Valiant line is that several I have seen have had problems with hardening, some were too soft and easily rippled, and others much too hard and broke apart. The following happened limbing out very soft wood (pine mostly) :
http://www.physics.mun.ca/~sstamp/images/golok_l_close.jpg
http://www.physics.mun.ca/~sstamp/images/golok_s.jpg
That being said customer service is supposed to be very good, so returns/replacements should not be a problem. Considering the retarded price (*very* low) I would not look upon this too harshly.
Regarding the belly on the Golok, the edge sweeps out in a nice smooth arm from tip to choil. The tip is however very broad and not really suitable for precision work, however it more so than many blades of that size as it is very easy to choke forward on the grip due to the pseudo-handle of the contoured steel in front of the grip. There however would be a problem with straight on penetration as with a thrust.
-Cliff