Sounds about right as that should give you 25/75 overall - I ended up making 100ml of 3mg rather than just the concentrate, as I was down to just under 30ml of the pre-made, it's in the cupboard steeping now.I have some 50%VG/50%PG MCV, so will need to make some in my usual 100%VG base and mix it ...50% of each do you think Bob?