Following some research on this site I thought I would try my 1st bit of mixing. Sourced a Ltr of PG and VG, 72mg of Nic and a few flavours. I'm no chemistry boff and I've got to say my 1st mix of 70/30 pg/vg 20mg Nic and some RY4 is amazing. 50ml works out at about £7 and the vape and flavour are just spot on. Anyone thinking of having a go just follow the mixing calculator it's very straight forward.