Cold Steel Recon Fixed Blade

I bought the sai mai version Very balance beautiful knife. It comes very sharp. slide thru paper effortless for such a thick stock. Amazing. I have found one tool mark on the spine. It is minor. However, the grind is uneven. Left side begins to narrow to the tip about 1-2 mm before the right side starts to narrow. Also, it appears that the right side edge is grinded at a different angle than to the left. There is bigger edge surface on the right side. I returned and bought the SK5 version Not as beautiful as the sai mai version to the eyes. But it is very sharp, By feel, the sai mai version is more balance when swinging. the difference is small. SK5 version also has the same grind issue but not as bad. given it is half the price, I would accept the small imperfection. Just my 2 cents.