That's a good way to flush out a dual coil carto terrier,
personally I fill to overflowing with VG/vodka mix I already made up in a 200ml bottle,
then blow it out gently into a tissue, three or four times until the fluid coming out is almost clear.
Clean it up and fill ready for a vape. The first fill has a lot of vapour and will be weaker than the nic content of your mix, but will be back to full strength on the next fill.
I prefer to drink my vodka rather than blow it through a carto
Of course it helps to keep similar flavours to a single carto, like fruity ones, coffee/choc ones, dessert ones and tobacco flavours, which helps to avoid the "mucky" taste you can get if you've used the same one for several different flavours.
A thought did occur whilst reading down your thread; you mix your flavours at 23%...
DV flavours are mostly at 15% in the pre-mixes...
maybe your hunt for a stronger flavour has got you killing it instead
Sometimes, less really is more. I remember in some early mixes, finding it impossible not to add a few drops extra "for luck" which is how I cook.... and only a couple of drops to a brew just didn't feel like it would be enough.... but when the finished brew didn't taste like the delicious pre-mix, I had another go using the 15% formula and
Isn't this a great hobby? Keeps you out of mischief....