Most of us who force carbonate use an external co2 tank that pushes the co2 to the liquid (soda, beer) and we can adjust how much we want going to the target.
Some of the problems with vinegar/water is the accidental transfer of vinegar (not entirely a bad thing, if you look at shrubs, usually a fruit saturated sweet vinegar which is mixed with carbonated water)
But most importantly, trying to figure the amount of vinegar and water to generate the desired amount of co2. Remember that you would wind up with two containers of equalized pressure in that case unless you used a regulator.
Though it would be good for a science experiment in middle school-college to explain chemistry and reaction stoichiometry problems.