quail eggs dont tend to explode if they are bad, but just dry up............
i dont even check for bad eggs......if they dont hatch by the 20th day i toss them......
i candle sometimes.........but sometimes i dont........
i would average the two temps
id say that you are in the safe range for temp............
nature is not perfect.....and eggs dont stay the same temp as hen gets off nest ect....
last batch i had temp was anywhere from 93.5 to 102.1....
i also forgot to lockdown the last batch....humidity ran anywhere from 42% to 55%....
33 outta 35 eggs hatched.....
quail are also not as sensitive to humidity issues as chickens/ducks ect are.........