Newbie Question about insulfation

[yoyodyne5877]

I did a search and did not find exactly what i need to know...

SWIM is an irregular but steady cocaine user (about 4-6 times a year for the past 7 years), and has recently found an adderall hookup. approximately how much should he snort from a 20 mg pill each time. are we talking lines, bumps, what?

Keep in mind that when SWIM likes to do coke he deffinitely wants feel the effects but not be completely beaming like a fiend. he generally does what might best be called a small line, or a large bump.

the adderall sticky seemed to suggest that 5mg would be good for an hour or 2. so were talking 4 bumps/lines from a 20 mg pill?

thanks in advance.