Start with a dose of Chikkara

that has produced hits and add a small amount of TE to it, see what happens. You can fold the gel pack over and use

a paper clip to hold it closed so you don't...

NPA is pretty strong and is

intended as an additive to other scents. I'd suggest TE, which is a less concentrated version of NPA. Easier to use

and harder to OD on it.