@RainstormZA also check out Totally wicked
https://www.totallywicked-eliquid.co.uk/e-liquids/ranges/mix-your-own-e-liquid
i have aquired some of thiers and they are good.
OK, this is my humble opinion, it is not the gospel, it's just my experience.
When I first started I heard all the hoopla about diy and bought a small kit, mixed my first flavor and had to remix it several times to get anything decent out of it, almost to the 40% conc level. Was not...
how did that happen --- easy , grub screws . the two on the one side refused to come out and rounded themselves into uselessness .
i drilled them out , got rid of the bits in the threads all nice and clean , ready for new screws .
but the holes had kinked a fraction in the process so i pushed...