For those boiling fluid, how old is it? Fresh fluid is rated at the dry boiling point. Over time, and depending on exposure, the fluid absorbs water and the boiling point drops dramatically to it's wet boiling point. It doesn't take long to contaminate fluid. For example:
Fluid Dry Boiling Wet Boiling
Motul 660 617 400
Motul 600 594 401
Brembo HTC 64T 635 397
SRF 608 518
The reason people have good luck with SRF is because it is less hygroscopic than conventional brake fluids - it absorbs less water in a given time. Conventional fluid can absorb moisture sitting on a shelf. The more important number is wet boiling. If max dry boiling is important, be prepared to change the fluid before every event.
The negative with SRF is the moisture it absorbs can become corrosive. You need to change SRF every year. Conventional fluid is designed to resist corrosion and can sit in the system for much longer periods. but it will be reduced to it's wet point
Like everything related to tracking a car, there are trade-offs.
I like Brembo HTC 64T for its low compressibility and high dry boiling point. Gives you a firmer pedal. But I will be changing it a lot more frequently due to it's relatively low wet boiling point.
Link to a comparison of all the major brands
https://thebuildjournal.com/tech-gui...parison-guide/