I'm glad you came back to follow up. I think I've only taken 5-MeO-MiPT up to about 7mg, but I didn't find it to be visual at all. I suspect the lack of visuals was not because of your tolerance from the ETH-LAD, but just cause it's not really one of the effects of 5-MeO-MiPT. Although, because ETH-LAD is a pretty visual psychedelic, tolerance from that would have diminished any small visual aspect of the 5-MeO-MiPT that does exist.
I found 5-MeO-MiPT to be pretty good for microdosing, you might find it to be useful to try that as a "nootropic". I think I used it around the 1mg range a few times. It's a bit wiring and energetic, and focusing like you said, so it seemed to work well. I'm cautious to get chronic with microdosing this one tho, not confident about health implications - it's a lot more experimental than LSD for example.