ABV of low wines in your boiler (neutral spirit production)

[Harley]

Hi guys,

The ultimate question here is: How does changing the ABV of low wines in your boiler affect the running of the still and the final product?

1. How and why does it affect boiler temperature?
2. How and why does it affect the power input?
3. How and why does it affect efficiency?
4. How and why does it affect column flooding?
5. How and why does it affect the final distillate?
6. What low wine ABV is recommended for making neutral spirit?

If there's any other questions that I should be asking then please add them. Thanks in advance for the insights!