I have a query in relation to the IV use of 'washed' (acetone wash) & 'unwashed' meth. When I use IV meth that is 'unwashed', I weigh out one point per shot. However, as all my meth is now 'washed', I'm not sure what amount I should weigh up to get the equivalent of one 'unwashed' point and I don't want to risk using too much. I could start by using 0.25 of a point and work my way up, but I just thought I ask the question for any input from others. Any info would be appreciated. Thanks.