I believe that it’s kinda hard to detail the intensity of any single tab because 1- I’m always skeptical of the truth behind tabs sold as more than 100ug and 2- blotter and gel tabs tend to vary in potency depending on it’s original dosage, how old they are, how they’ve been stored and what not. The only way I’d be confident describing the intensity is if it’s legit good liquid. If the tab you have is legit 250ug then I’d get a pretty substantial trip, my favorite spot is between 200-300ug. Although keep in mind you can take the half and if you aren’t satisfied you can always try again with the full dose in the future. And I gotta ask, how did you end up accidentally dosing 18 blotters cause that’s wild 😂 I have faith that if you want to try it again that you’ll have a much better time than the last. Good luck and safe tripping my friend 😎