You probably aren't going to get 10 'trips' out of a gram. I've noticed they tend to exaggerate. 1 gram for me used to be between 3 and 5 experiences and that was of my 20x.

There's really no need to measure out doses. Just take a fat pinch and set it on top of a very small amount of bud. I say to do this because salvia extract is very fine, and you don't wanna suck it into the water and waste it.

And you might wanna use a bong rather then a bubbler. Extract smoke is harsh, and tastes like shit. You can make a nice salvia bong with a metal bowl, a 2 litre bottle, and some pens that you duct-tape together and attach to the bowl.

Use a torch lighter as well. They're 5-6 dollars at shitty gas stations, and they sell em to kids all the time.

Try to keep the salvia from cherrying too much. Though this is hard with a torch lighter just keep moving it around and sucking hard. Make sure your bong has a carb/slide because you'll get alot more smoke.