Nice! I wouldn't actually binge on DOC but I have taken it weekly for long periods of time before which is kind of a binge, especially for most people. Anyway, yes I've taken phenibut many times with DOC, in fact these days I like to use phenibut for most trips as it's just a great thing to combine them with. It doesn't reduce the trip at all, or mask anything, it just makes you approach the trip with that phenibut confidence and smoothness. It makes me feel a lot more comfortable, but it doesn't stop body load. But honestly I find that bodyload is, for me anyway, usually a symptom of my internal state more than an actual physical effect from the drug, or an excess of energy that you're not channeling. For example, with DOC I get a lot of body energy which manifests as restlessness and an almost RLS-style need to move my limbs. So I do things when I take it, ideally I spend the day exploring nature with a good friend who also takes it. When I'm out doing things, the body energy feels good and it helps me, and I generally feel euphoric and talkative, but if I sit at home I feel very restless and kind of overwhelmed and unpleasant until the trip levels out (which takes like 6 hours or so for me, for it to fully peak).
But anyway, benzos like diazepam help more on a physical muscle tension level, but they do mute some aspects of the trip and reduce overall intensity. IMO benzos are better as a safety net to be utilized only when necessary, whereas phenibut is a great drug to combine with psychedelics. If you're experiencing a negative headspace you can't get past and it's becoming problematic, benzos can be very valuable. I tripped VERY hard at a festival a couple of weeks ago and at some point I really got the fear bad, probably the worst it's ever happened and it happened out of nowhere because I've tripped hundreds of times over the past 10 years since I've experienced the fear at all. Anyway I realized I was about to lose my shit and I took 2mg of etizolam, and it pulled me out of it and I went back to having an amazing time, although I was MUCH less high. Which, that time, I needed to be. I was actually on phenibut as well, but something still triggered that anxiety attack, which the benzo interrupted very nicely.
So I guess I'm saying they both have their place, but they're different places.