Would like to understand logic behind hot start suggestions

[YankeeClipper]

Thanks Lear-jetter.

1) Your Vapor-lock explanation checks out with any understanding I've had on the topic

2) Because of the return lines, I also get that at least upstream a bit you'll get cooler fuel primed and ready to feed further downstream once the mixture is opened again--at least if we can assume that tanks are cooler than hot engines. Hopefully we can.

3) Open throttle: this is where I don't understand the procedures. They do not say to rotate the engine in the closed throttle position (not the ones I've read here and elsewhere). They say to close the throttles to cracked before rotating the engine.

4) the relatively gradual opening of the mixture also makes sense, ensuring that you don't get a flooding condition.