I never even thought about the number of shots ordered -vs- whether I order 80/20 or 50/50.....it must really make a difference. I have tried several different ratios but never adjusted my number of shots.....maybe somebody could kind of chart some of MBV types they have ordered and how they differ....for us unknowing novice people !!!!! WE NEED educated by people in the know.
The problem with this is that everyone's taste is subjective, what works for one may not work for another, however, I found for myself, I typically get 65/35 and with that I get 2 extras shots, I also like 50/50 and with that I get 3 extras shots due to the increase in the VG which tends to mute flavor, now this is subject to some of the stronger flavors, for instance one of my 50/50 which is sticky bun and has 3 extra shots and should really only have 1 - 2 as it is a strong flavor on it's own, at 80/20, I would not get any extra shots.
Again, this a very subjective and I am probably not the best to give advice on this as I have some major sinus issues that tend to make me need much stronger flavor which would probably equate to 1 shot less for those that have no severe sinus issues.