I'm used to make hunts of 1 hour, and I notice that in some hunts my experience per hour shown on my level bar is different to the experience shown on my hunt analyser when I finish the hunt (ex: my experience on my level bar is always around 1,9kk-2kk but when I finish the hunt, the experience i made is 1,8kk in 1 hour)
So how accurate this tool is?