Pill testing in Amsterdam in front of clubs...

[umich]

SWIM plans on visiting Amsterdam soon and is wondering how the pill testing sites work. SWIM has read that they are outside and they just take enough off your pill (3mg worth) to test it than educate you on the results and your next move and give you the pill back. SWIM has also heard there are free tests where you donate your pill to get it tested by gas chromotography(same test as ecstasydata.org?) which is a more exact test. Does anyone have any experience with this in Amsterdam? Thanks