i dont really find that, i trip every weekend, and i find that my trips are always the same, with 10g of fresh psylocybe cubensis.
i have tripped twice with shrooms ive bought, and twice on my own shrooms, and although my shrooms are a little less strong than the ones i bought, the trips were nearly the same
im not saying his will be the same for everyone, this is just what ive experienced myself
Peace out