I am having some questions about the PT100 temp sensor and maybe somebody here has some answers. While the hot end is heating up i have very big temperature fluctuation. Sometimes 10 degree Celsius from one measurement to the next. It jumps from 190 to 180 and back to 191 in 2 seconds. All while the hotend is at max power. Similar behavior while cooling down. I noticed this because at 40 degree the fan turns on. When it gets around that temp the fan starts and stops spinning at least 5-6 times during every cool down and the temp fluctuates at least 5 degrees. So far in my other printers i only use the old school 100k thermistor (both in a E3D V6 and some other hotend) and it is much more stable. It might jump around 1 degree but even that is rare. Also i have the profile in S3D setup to wait for the temp to stabilize and it takes quite a bit longer then on a normal thermistor setup. It jumps around like crazy. I did autotune the hotend and i have 2 other E3D hotends so i don't thing it's a tuning issue. I don't understand if this is normal behavior or if my setup is faulty. I only printer with one hotend atm even thou i have the dual but i noticed similar behavior on the second hotend from time to time even at room temperature although the fluctuations are smaller (3-5 degrees). From what i understood the reason for having the PT100 is to get a higher max temperature but also to get more reliable readings. So far i am not impressed... Maybe i did something wrong. I just don't know what. Any input would be appreciated. Thanks.