As the title says.
Explain me which profession is better for hacking.Im Zolazin Spy at the moment and im focused only in hacking.
Should i change to hacker?
its 30% hack vs 20% cloack

Dont be a hacker ,absolutely useless.
thats coming from a hacker.

To add in a little more context, Hacker will not do you any good at all if you have relatively little cloak and scan, which judging from Gink's ship logs seems to be the case.

Hacking strength seems to be based on a combination of your scan+cloak, so without a decent amount of those relative to your BT opponents then any % increase in either cloak or hacking strength will not help much at all, because a % increase of "bugger all" is still "bugger all".

Anecdotally, with a good amount of scan and cloak during a short stint as Hacker I found a delightful increase in the amount of crit fails by opponents attempting to hack me.

I do agree with what Deigobene said, just today,
2 hours, 43 mins ago From: 88RAPTOR88
88RAPTOR88 failed to hack into your ship computer. You counter-hack and steal the location of their planet: ********

and i crit hacked someone planet today as well ... so can be useful for that. but for plain hacking, which i do here and there and have done today, 50+ blue badges, Being hacker is useless. having more cloak so you can hack more people, the ones that dont give a hack option in your scan range, would be more useful IMO. And what everyone has said above

BTW Deigobene my ship logs are done with no mod ( i know you meant no insult; and none taken ),but since im a SSB i have to switch playstyle modes, so if i put one one, my ship will seem like a glass cannon, a tank, energy tank ect, so i leave it on my tank mode;max hull and shield or with no mods. when i hack or pvp, i obviously have more scan and cloak otherwise ill be scanning the same people and wont be able to hack new people i find; when i hack i put my cloak to about 2k and increae my scan from 130-1.5k. so no point of the first paragraph.

And as a hacker i can say there is little to no major gains of being a hacker; more Crit hacks yes and some other minor things, otherwise hacking seems the same. I would without a doubt say spy is better than hacker. from what everyone above has said and the lack of any real major gain from hacker for the trade off of the gain from spy.

I also agree on the mahs part and i would definitely agree hacker and spy are horrible prof for SSB, one of the worst ones really.

builder is also a crutch but can be used temporarily in a cash crunch.