One less thing that can go wrong
Race fuel isn't bought for two per cent more power. It's bought so that when the car is slow on Sunday, the reason is findable.
Power is the claim everybody makes and nobody can check
Every fuel company claims horsepower. The claims are usually true and almost always useless, because they were made on a different engine, at a different compression ratio, in different air.
The question that actually decides a weekend is not how much a fuel makes. It is how much it varies.
A baseline you can trust is worth more than a number
A race car or a race bike is a stack of variables, and the job of a weekend is to work out which one is wrong. Every input you can fix in place is one you no longer have to test.
If the fuel is identical from drum to drum, a slow car is a setup problem, and setup problems are solvable on a Saturday afternoon. If the fuel is moving underneath you, nothing you learned on Friday is worth anything on Sunday, and you will spend the season chasing a fault that is not in the machine.
That is the whole argument, and it is why the number that matters after production blending is not the peak figure. It is how little the fuel varies between batches.
The people this matters most to are not the factory teams
A factory team has the staff to isolate a variable. They can run back-to-back, log everything, and find the fault.
A two-person operation cannot. For a privateer, an unexplained loss on Sunday morning is not a data problem, it is the weekend. Removing an input they were never going to be able to test is worth more to them than it is to the front of the grid — which is the opposite of how sponsorship usually works.
Every blend VP publishes, with its published specification and who runs it.