Howdy Bro!
I don't know if tube changes will make your amp "cut better" or not? I assume you mean in a live mix?
If this is the case, I'll let you in on a little lesson that I've learned and have ranted & vented about on numerous forums.
I've owned many combinations of extremely good gear over the years and though I've always prided myself in having a really good stage sound, I've heard the same thing over & over again from folks in the audience over the last few decades, "I can't hear your guitar, can you turn it up?". Rather than go into detail, I'll just summarize what most players already know that have put in any amount of stage time over the last twenty years or so:
Most FOH techs these day's Suck!!!! Period!!!!
All bottom-end with absolutely no idea how to shelve the instruments and use their damn "ears" rather than some sophisticated piece of equipment to tell them what's going on. Once in a great while you get someone that actually has "talent" unfortunately, those folks are a very rare breed these days.
O.K. I'm going to shut the hell up now. When I get started on this rant I can go on forever. My advice to you is to dial in your Herbert to whatever sound inspires you to play, and if you get any "failure to cut" comments from some tard of a soundtech, slap him in the mouth. "He's failing at His Job"!