take that dosage with a pinch of salt, i have ganesha blotter that are sold as 100ug but others have estimated it as 80-90ug, i think i know were them bears are coming from aswell (holland), 130ug is a nice dose, that would be perfect for a first trip, take one (providing dosage is correct) and that should have your tripping nicely, also acid is very much like the way you have described mushrooms until you go into higher dosages, then you get the full blown hallucinations
if your aiming for that then drop 2 and see how it goes, since ur experienced with mushies and AMT (something i still have to try and has been on my list for ages now), i reckon u could handle a nice dose then. look forward to that moment, when everyone in the room goes quite, theres no noise and could hear a pin drop, then you realise, dude im starting to trip here :D
i love seeing that expression in a first timers face aswell, when they realise they r finally tripping, u never forget it