pro-tip: never fasten the nut around the valve that holds it to the rim, unless you know with certainty that the road will always be smooth. Any larger than normal bump will rip the tire at joint. Just keep it loosely on, but not tight.
Very good one, and similarly if you get out while it's cold and store your bike in a hot place, don't tidy that screw. I've had it fail once precisely on these conditions
Yes presta too. I wouldn't discard the nut, since it provides a good support when pumping the tire, but just don't fasten it on tightl - maybe leave a few centimeters.
