No need for ultrasonic just shake till its clear, vg looks sort of stringy as you add pg or water to it but it mixes together very quickly.
If you use the ejuicemeup calculator theres an option to add water/alcohol so you dont need to premix it but I find it handy having a larger bottle premade.
Brilliant! Thanks a lot, can't wait to get into all this
Everyone's help is much appreciated.