Use the leaf bed method (leaf/ash - spice - leaf/ash) in a bong.

30mgs won't break me through my front door.

I need between 45-65mgs for a breakthrough, we are all different though some need less, others need more.

Do we know what the spice looks like.  It is a yellow puddly mess?  If not, I doubt it has degraded enough to stop your friend from having a full experience.

remember that first hit determins how much of a breakthrough you have.  The bigger the hit, and the longer it is held in will help ensure a breakthrough.