first time dosage?

hey, i'm thinking about trying these truffles, for the first time with my partner, we have never tried psychedelics before, we have taken other stimulants such as coke and e, i did get a trippy e once though in which the corner of my ceiling appeared fuzzy and moving as if made of water and i also saw a vibrant spider in a web just appear in front of me as i walked through the hall, it was fun though, but i'm guessing truffles will be a bit different, anyway we were thinking about trying 10g each of atlantis, would that be a good idea for a first time dosage? i would appreciate opinions or suggestions, as we are looking to try them quite soon as in the next few weeks or so, thanks 
