Webshooters or Organic Webs?

Correct answer is both when appropriate, Webshooters for normal Spidey adventures and Organic for the Man-Spider / mutations stories.

Why would the web sacs be in his arms and not in his ass?

Mechanical always and forever. And the reason is simply this: nothing about Spider-Man should be gross. If I ever have to worry about what orifice Peter Parker excretes a substance from, something has gone terribly wrong.

Organic is the only way, otherwise his entire character is retarded. Like he turns into a guy with “radiation powers” who only makes himself spider because he got bit by one. He needs organic ones so he can actually be SPIDER MAN. There’s enough “super geniuses” in marvel, don’t need more. Shit why not make him into a Macguyver type where he uses household stuff to enhance his webs. Like making a makeshift tazer the shockes his web so he can taze people

>refuses to share the technology
Pretty sure there were plenty of stories where Peter tried to sell the web formula but the Marvel editorial can't have """lovable looser""" get rich easy so in-story explanation is marvel civilians/scientist/police are just too dumb to see a potential in this tech and just brush him off.

Because he's a human and not a spider.

Generates the web organically, mechanically weaves and shoots it.

>fusing versions
This has never worked before and would just be a cringefest if it happened

This is a retard argument, it’s fiction. It’s already stupid that he didn’t die from fucking cancer or that he’s no immediate turned into paste when he crashes into the pavement. Having spinnerets in his wrist isn’t a far leap

>And it also makes him look a little like an asshole that he refuses to share the technology.
He literally tried to sell it at one point but nobody would buy. Peter's great at a lot of things, but marketing isn't one of them...which explains a lot.