prestrafe is random?

Yeah, you are just lacking skill, couldn't you figure this on your own? Keep playing and you will see eventually that there are rarely 'random' things in this game. (Of course there are but not in this stage of your progression, it's all about skill at the moment)

Originally posted by FuZzy1

check this https://www.youtube.com/watch?v=nVLUPqfdMdw
also use /speed, it helps to see if you do the arch right, and the right moment to jump.

No luck involved in the prestrafing technique. I guess one place where luck can play a factor is in the bhop, but still timing is far more important and you can reach a level, where you are safe from these killspeed bhops. Some jumps might feel more random than others, like the hard jump on kzno_xtremeblock, where you have such little space to do a prestrafe, for me feels like luck, but zhady doing it reverse and people doing it easy, shows that it's just as any other jump.

Try to make a quarter circle.

Originally posted by reikoo

hello. first ill say that im doing it for 2 days
so it possible that i missing something. i play with clean install cs 1.6 setting ( except rates and sensitivity )
so i started out by downloading kz_longjumps2 and practice my prestrafe.
but i always get the feeling that those jumps are randomly "good" or " not good"
i can jump to the 235 unit block (even did once 237 but don't know how i did it ) it seems
that sometimes i just fall off even i did the exact same jump as the good one before it.
is it random or i just missing something?

Originally posted by gun1_Green

When jumping on blocks there are several things you have to take in consideration: your Jump Off(jof), your pre-strafe, the number of strafes you use, your gain, your sync and when you duck.

For blocks you need to have a good jof. What that means is that you have to jump from as close to the block's edge as possible. If you have, for example, 12 jof, that means you've jumped 12 units away from the block edge. In turn, this means that you need an extra 12 units to land the block. So if you're trying a 230 block with 12 jof... that means you must land a lj of at least 242 units. If your jof is 2, you need to jump at least 232 units to land it, etc etc.

I don't want to go into detail about the other stats because there are many videos that explain it better than I ever could. I strongly recommend watching wayz's detailed longjumping guide here: https://www.youtube.com/watch?v=TkxtdC2L3MQ
As others have said - the more you play, the more you'll realize there's hardly any luck involved in jumping. You need to practice time and time again until you understand it.

In addition, there are public servers dedicated to kz_longjumps2 and they have all the plugins you'll need to keep track of your longjumping stats. Just run a search ingame for the kz_longjumps2 map and pick one with low latency and make sure it's not 100aa. You want to learn to jump on 10aa because it's what most kz/bhop servers use. Getting used to 100aa and then coming to a 10aa server is annoying, but that's a whole different topic. Anyway, glhf.

Originally posted by gun1_Green

How synchronized your strafes are between your mouse and keyboard movements. Basically, how well moving your mouse left and right corresponds when you press A and D when you're in the air during a jump.