Does this happen to anyone else?

I don't use too many different "builds" in PVP. I normally just make a DEX-based build and weapon hop whenever I get bored of a weapon. Normally, only a couple of days after I switch weapons (normally when I adjust to it), I start performing much better than I ever did with the previous weapon I was using. But after a week or two I either get bored of the weapon or just start performing terribly.

I have a couple theories on why this is so.

1-I am using better weapons I out if sheer luck. I am choosing weapons better suited for my playstyle.
2-I am adjusting to other builds. I will go through a few fights thinking I needed more range, for example and adjust weapons accordingly.
3-I am just getting better from trying new things and learning from my mistakes. I've only been dueling for about a month but I can keep up with, or beat, people at the top if the Book of the Guilty at times when other times I lose to others I know I should probably beat.

I would like to hear everyone's opinions and thoughts on what the case may be, and does anyone else feel the same?

It's the same in music, dono if this will help-

You play a guitar for years and love it. Eventually you buy a different guitar and as you're playing it you're like "DAMN THIS SOUNDS AMAZING!"

After a while that sound starts to go away and you try to "repair" the guitar to get that sound back. Fact is that sound never went away, your ears adjusted.

Prooooobably the same thing as you're experiencing now.

I can deal with the boredom. That's pretty much a given with everything I do. What I'm really wondering about is the seemingly sudden increase in skill when switching weapons.

Thats what I mean, it's because it's new and different you notice the fine differences to your previous weapon and quickly adjust. However there is a more long term adjust that gets you "comfortable" with the weapon.

I understand now, thank you. I was just hoping for a concrete, scientific explanation, sadly.

Scientific? Hah, I couldn't if i tried

I don't know that feel because I am a try hard that duels almost exclusively with the chaos blade.