been researching, this is taken from DrG, in case anyone else who was following this thread was curious.
"* Water based can more readily be contaminated with bacteria (as it grows nicely in water if BA content isn't high)
* Oil based will be absorbed more slowly into the body, but the active drug (stanazolol) half life is the same once absorbed
* Water based can be a little more painful, as the water is absorbed more rapidly into the body than oil, and as a result the winny falls out of solution and crystallizes, causing irritation and pain at the injection site. Oil based will also fall out of solution, but a lower rate, so pain level may not be as great. BTW, this assumes equal BA content.
* Results are the same if used consistently and at the same dose. I have switch from one to the other before (ran out of zambons and got oil based from a UG lab) and really saw no difference in results."