Hey not being defensive personally at all but, perhaps for the topic and specific solution. I am merely correcting some things I think arent quite accurate or at least want to allow some space to gather real data from users like me.
In the interest of keeping things more factual and less speculative about the Speedsty solution specifically in this thread ,for the benefit of those who may consider it. The thread stays on topic as much as we can for the Speedsty. Granted that fuel temp concerns aren't without cause.
Ask is that we can leave some space for debate as we get real world data on its performance and any actual issues that might arise ,including logs for pressure and fuel temps (MHD has a setting to log). I plan to contribute there.
The Speedsty is staged for the secondary pump and it has a variety of programmable options for how/when that happens for a second pump.
I did mention that PWM is a beneficial option for more money and slightly more setup on the ET3 and represents an upgrade choice.
As you and others install the ET3 , it would be great to have a dedicated thread for that solution too