[MadMotoUK]

The thing to remember though, and one reason why many people upgrade to braided hoses, is that the rubber hoses degrade over time and allow air/moisture into the system. Also, as they tend to expand under pressure, the actual pressure reaching the caliper is reduced, something that doesn't happen with braided PTFE hoses.

 

[MadMotoUK]

Have you actually tested this yourselves? I've done so and there is a drop in pressure at the caliper using OEM hoses of a certain age, admittedly on bikes but the principal is the same.