It has been said that Berkley Vanish Transition is heavier than Vanish. For some time I have been trying to find out what that difference is. Finally Berkley has responded by email this morning.
"All true fluorocarbons are made of PVDF, which means that all true fluorocarbons have basically the same density (approximately 1.7 - 1.8. Vanish, Vanish Transition, and Trilene 100% Fluorocarbon are all 100% fluorocarbon, which means they all have basically the same density (1.7 - 1.8."
Wish I still had my reloading very sensitive scale to check.