The most important thing is to check you pressure right after coming into the pit/depot and measure your "hot" pressure towards the spec sheet of the tires you have. A good indicator of wether your pressure is somewhere around optimal is the way your tyres look after a outing. If they look anything like the ones in this article you need to do something
https://www.2wheeltuesday.com/2009/0...ur-motorcycle/
But checking them afterwards is like playing catch-up...
Having tyre warmers lets you get the pressure right(ish) before you get out, saves you 1 outing. And you check before you get out on track every single time, because when the ampient temperature goes up the tyre pressure rises, so you need to bleed of some pressure, or during the famous UK summers you might want to add more pressure
Buy a good pressure reader, not some 4.99 Sh*t from halfords
The faster than fast boys will most likely have a tyre core temperature reader(pyrometer with probe) but thats for pro's and not us mortals