For one thing, assuming that your calculations are correct, 200mg is not a huge dose of mescaline. Active, certainly - but not the sort of experience that will have the walls melting around you or whatever.
Even in good dosages, however, the effects of mescaline are not typically "hallucinogenic" in the way tryptamines (like DMT, psilocin etc) or LSD are.
But it is worth bearing in mind that the % of actives in san pedro can be pretty variable depending on genetics, growing conditions and so on.
I find that it is certainly 'trippy', but in a sort of empathogenic way, in my experience at least. Very different to LSD, more of a trippy MDMA-ish feeling that lasts for hours and builds in waves of gentle euphoria.
If you took LSD 200ug of LSD, i can't imagine you'd be in anything but a highly immersive psychedelic state, which typically be a very visual experience.
Are you taking any medications such as antipsychotic or anti-depressant drugs? Many of these will greatly hinder your ability to trip (especially anti-psychotics).
What exactly are you looking for in a trip? DMT is a pretty high yardstick to set, effects wise - as you would be hard-pressed to find a psychedelic that intense without going pretty deep down the rabbit hole, so to speak.
If "breakthrough" is what you are going for, stick with DMT (or other psychedelics with similar effect profiles).
Usually LSD visuals are more typically characterised as visual distortions - i get patterns, morphing shapes, heightened senses and a bit of synaesthesia on occasion.
True hallucinations - seeing things that aren't there - are much more likely in a DMT experience than LSD, and i've never taken a high enough dose of mescaline to have much in the way of visuals at all, though it is a very pleasant drug nonetheless.
But as for "breaking through" on LSD? I'm not sure exactly what that would entail. I've tripped and lost all sense of who and where i am - experienced what people refer to as "ego death" - i suppose. But that's not really the experience i seek in acid.
It reaches a point where things stop making much sense, and profound as that can be, it is generally pretty difficult to integrate the experience afterwards, as you are sort of past the point of being able to comprehend your thought processes or perceptions.
Perhaps your LSD was nowhere near the dosage advertised - which is pretty common.
Either way, most psychedelic drugs have their own distinctive characteristics - which can be quite dramatically different.
As you say, LSD and DMT aren't really comparable drugs in lots of ways.
When i was taking a lot of acid, i used to find that i sometimes had to "work on" achieving visuals. Like, lie back and stare at the ceiling, a tree trunk or something, and watch as elaborate patterns slowly emerge and envelope whatever i am looking at.
But to me, visuals (OEV or CEV) are just a small part of the psychedelic experience i know and love.
Sounds, tastes, textures and insights are a great deal more fascinating to me, but everybody has their own preferences when it comes to altering their consciousness.