Were you using sust from your first source as well or test e/c prop or what? Then switched over to sus from VF felt like you were crashing then switched back?just wanted to say , i was using vipers sust for a few weeks after replacing another source and over time it seemed i was crashing and getting softer . so i switched back to the other test i had.. i have no test results i’m too broke to send stuff in just thought i’d give my thoughts. idk if it was just underdosed or what.. it was smooth tho that’s one thing . i’m not gonna say it’s bunk but for now i’m saving my 2 other sealed bottles until i figure it out