Eh, I think the 2 hits for visuals line is more indicative of real LSD than NBOMe. As we all know, NBOMe's strong suite is visuals, and you don't need much to achieve them. Plus, NBOMe tabs are usually way overdosed, ie 800ug-2mg, median from what I've seen being 1.2mg. 1.2mg is more than enough for strong visuals. Whereas with say 100ug tabs of LSD, one tab might not give you visuals, where 200ug would.
I'm not stating this as something for you to see and think "Oh great, they probably are LSD," though. Definitely get a test kit, or just buy more than needed if not super expensive and try a quarter tab and see if it has the telltale NBOMe bitterness.
And with that statement I'm not endorsing taking drugs without knowing what they are, but people will be people.