I heard from multiple people saying staccato warranty is not void if vulcan in specific does custom work on the gun? This comment wasn't even directed at you? The OP in question was the guy who was going to purchase the HD P4 in the future and didn't want to do the work themselves so they were going to send it to Vulcan. Presumably they are probably new to Staccato and could use the information to make an informed decision.
I've dealt with Staccato since they were STI, TRI, and before so I'm aware of how they work and how to make an informed decision about what I do and don't want to do for my personal needs. As a new Staccato owner that commenter very well might want to keep their warranty or know that it diminishes the value of their guns if they go to resell them.
And for the record, I do work on my own guns and have for over a decade of only really shooting 2011s. You kind of had to in order to keep the platform running in the early days. I do however also know my limits and will get help from good local smiths or people like Mercier, Chambers, Charyn, etc. if I'm out of my depth.
Also no clue what you're saying about the warranties and my posts, but you do you man.

