Isn't that essentially low-passing your guitar at 5kHz?
That's probably gonna sound like shit in a full mix.
The whole point of laying down a huge sounding guitar track, is so you can trim away at it in the mixing stage to fit the track.
First of all I'm referring to live mix. Studio recording may require more.
To answer your question, No not by just adjusting the cab block. If that was true, then all greenbacks would sound bad. I suggest listen to some isolated guitar tracks, from studio recordings. They all pretty much sound bad. IMO EVH overtones are terrible alone.
We all make the mistake of wanting a huge deep shimmering tone with good tight bottom end and fluid highs. The problem is, when combined with drums, bass, keyboard and vocals, we get stepped on, in a live mix. Brian May said it best, if you want a killer sounding guitar in your mix, you have to sound like crap by yourself. Guitar players keep turning up, causing more mud, but still don't get out in front, because they are getting buried by the other instruments, due to bad EQ. A guitar is a mid range instrument. So smiley faced EQ settings tend to be bad. A frown face would be better, (probably a frown because it sounds like crap all by itself
).
I found for live electric in a mix, roll off everything below 100hz, tweak in the 150 to 200hz area for thickness, but not too much or you'll boom. (because that's the bass player's part), adjust around 500hz accordingly, so you don't compete with the snare, be careful with the highs above 4k, as they add an enormous amount of hiss/fizz when using a lot of distortion, maybe cut a little 3 to 5k, to stay away from vocals, and add slight 8k, if the guitar is dull sounding, but not too much. Of course different guitars, with different pickups, will require different EQ settings. These are general areas.
All our ears are different, and I hate my guitar tone while playing alone. So I created solo practice presets, to keep me happy. But my guitar sounds killer live, mixed with all the other instruments. It's strong, clear, tight with the right amount of punch and sizzle. And for the first time in years, and ever since I got the AXE, I was asked to turn down in rehearsal and live.
But back the OP's issue, of not liking what he hears, which I agree with
@yek, that it sounds natural to me. It could be due to too many highs getting through, and something like reverb or delay emphasising those tones. I find rolling off high EQ areas, even in the effects, like delay, can smooth out the unwanted anomaly and create a more fluid tone.