35 year old seasoned AS vet here, but i'm having some frustrating first time issues with some test suspension (milky water based). I started trying to use a 27g needle, no luck then my regular 23g and no luck either. However, with both i'm able to shoot it out in the sink no problem. I've wasted a few mLs already. Its frustrating! And believe me that i'm pushing hard on the plunger in the muscle! Any secrets or something i'm missing? Or am I just an idiot...never had an issue with any oil based.