Reliability of the Umisen/Yamasen techniques translation

[Cheb]

While searching the Japanese original to better translate the technique names to Russian, I found two things: First, I got it all wrong so I have to correct my fight scenes (the damned fanon!) And second, the technique names... They are all questionable.

White Snake Venom Reliable Fist (Umisen)
白蛇吐信掌
I got "White Snake Unerring Spit Palm"

Poison Snake Deep Hole Blow (Yamasen)
探穴掌毒蛇
I got "Poison Snake Piercing Palm" (?)

Of note, these techniques are performed as palm knife-jabs, not as fist strikes. Also, I like the allusion to the accuracy of a spitting cobra (if there are white cobras, you could translate the first technique as "Unerring Cobra Spit Palm").
Mind you, my translations aren't perfect either, I adapted things a bit. But still...

P.S. Yeah, I read too many times of Ranma using Poison Snake Deep Hole Blow to kill a Jounin or two by ripping their hearts out while hiding in Umisen-ken. The problem is, it's a Yamasenken technique and as such it would immediately blow the umisen undetectability when employed.

[Crescent Pulsar R]

One answer is that, instead of getting it wrong, they just didn't think that the literal meaning read as well as other equivalent words that they could come up with.

Also, it looks like its your translation against a fan translation, since Viz's translation is different:

Umisen-ken: Strike of the Spitting White Snake

Yakasen-ken: Fanged Fingers of Steel Welcome-Gate

About the P.S.: Actually, it wouldn't inhibit the technique. If it did, then the attack against someone's back wouldn't work, either (Strike of the Spitting White Snake). It's not an attack that announces itself; it's simply a brute-force attack. However, each time I saw the attack, it did require the target being restrained by a rope, so...

[Cheb]

, since Viz's translation is different:

Ah. Of course. I know two versions: the English scanlation I downloaded ages ago (a very painful process when you only have a rickety modem and not enough spare disk space to store the whole gigabyte at once) and the Russian paper version on my bookshelf (damn them publishers for freezing in 2008 at vol.14!)

it's simply a brute-force attack

And that's exactly why it would disrupt umisen. When an umisen user strikes (Strike of the Spitting White Snake) it's a move specially designed to be compatible with invisibility. It's not as strong as other techniques. I would think that anything more powerful would need battle aura to be generated and thus disrupt the insvisibility.

[Crescent Pulsar R]

I disagree. When Genma used the Strike of the Spitting White Snake, he laid Ranma out in one go. Which was just as effective as the time when Ranma was hit by the Fanged Fingers of Steel Welcome-Gate. The issue with the latter is that it's a frontal assault, and can be blocked: thus, a rope is employed. The reason why it would work with the umisen-ken's ability to mask someone's presence is because an attack is an attack (brute-force just means less subtlety), which means that they would both alert the opponent when used. By the time that the Strike of the Spitting White Snake is used, it's already too late to react, and that's why it works.

The only issue is to not show any "fighting spirit" on the way to performing the maneuver (which is how Ryuu got Ranma that one time, because he could still detect Ranma while he was moving into position). So, it's possible to use the Fanged Fingers of Steel Welcome-Gate so long as the opponent doesn't see it coming, because they may not be able to move fast enough to block it as soon as Ranma appears right in front of them. It's not as ideal, but I think it's workable. Especially if the opponent begins to expect an attack from the rear every time Ranma disappears from their radar.