Everybody is different - but I am a very technical type person ( ex-Engineer) and I have never "just run". I have always trained using training plans that specify paces for different activities and I use a GPS watch to monitor/control that. Even at parkrun I use a watch to control my starting pace and I am well aware of the dangers of going too fast. Now , they say that you should never experiment with "something" different in a race - shoes, clothes, etc - but I am pondering running "naked" in my upcoming HM. I do have a HM PB - part of me doesn't want at all to improve it but another part of me would be disappointed if I were to blow it out too badly. But also there is a part of me who just wants to enjoy this "race".
So who of you use watches to control your pace during a race and who just "goes for it!" - and why???