I just came here to say that having access to a parser won’t make your DPS better.
Theoretical max possible DPS for every class has pretty much been figured out at this point. There are loads of guides on how to get there, detailing everything including gear affixes, rotations, and optimal tilesets. All of this information is publicly accessible.
You don’t need a parser to acquire the gear. You don’t need a parser to practice/learn the rotations. You don’t need a parser to make the tilesets.
A parser simply isn’t necessary for personal DPS improvement. All it does is give you a concrete numerical representation of your improvements. You can improve just fine without that, you don’t need to see the numbers to know that you’re getting better.
I managed to hit 50k DPS unpotted with a +4 scoundrel gun on the fellowship hall dummy, without tilesets and without having ever parsed myself/been parsed prior to that moment, when I still played the Quest version of the game. This was entirely thanks to doing research on the class and figuring out what I could do to theoretically increase my DPS output just by understanding the class mechanics better, and practicing. That 50k was more than I’d ever realistically need for any of the content in the game.
Edit: I think it’s also worth noting that the +4 gun & the gearset I wore with it at the time also had terrible affixes on them (Iceheart on the gun and a mix of random stuff on the armor pieces) because I wasn’t yet familiar with re-rolling or what the best affixes for the class were. And I maybe had 1 ring at the time, and it wasn’t a world boss ring because I hadn’t even fought the world bosses at that point.
I have certainly improved since then, I even developed my own tileset & rotation that built on the basic concepts of other existing tilesets/rotations, but I don’t attribute any of my improvement to having a parser. I attribute it entirely to the physical practice & honing in of my rotation. I trained to be more efficient with it, to optimize my reaction times, even trained myself to maintain it while constantly moving around. Looking at numbers on a screen didn’t help any of this.
Is it nice to have a concrete numerical representation of what I’m doing? Sure, I can’t deny that. But it isn’t necessary, not in the slightest of ways.