If you suspect that even with a three-tier referendum potentially allowing your preferred result through without a plurality on the first choice still would not return this result, what to do?
Suggest lowering the minimum age so that you get an additional cohort of 125,000 voters who may not have even been born when a certain xenophobic film was released, but are statistically-inclined to your preferred view.
“I can confirm that it is the Scottish Government’s intention that 16- and 17-year-olds are given the opportunity to vote in the referendum that decides Scotland’s future to the extent that this is practicable. As you rightly point out in your letter, franchise issues are not devolved but reserved to the UK Parliament so the specific legislation will have to address this issue. It is my intention to make provisions to this effect in the Referendum Bill that essentially reflect the approach taken for the elections to NHS Boards in Scotland.”
You can also title your press release to suggest the die has been cast, without the tricky bit about state-approval. And if anyone objects, you could then turn on the passive aggression by claiming they are refusing to allow the little cherubs a say in the most significant political event in Scotland when a poncey, flatulent Italian landed with his eye on the British crown.