So i was just wondering if anyone ever has or would approve of using the frixion erasable pens. They're erasable pens which use friction generated heat with the provided eraser tip to get rid the ink if a mistake is made. The problem with me when i'm doing an English essay, is that i make so many mistakes and it gets so messy that simply looking and rereading my essays gets me annoyed/stressed and really unhappy with my work. I know presentation matters very very little but i lose so much confidence when i am constantly making mistakes with pen hence investing in getting one of these frixion pens.The only risk is that the ink may disappear is extreme temperature conditions (above 60 degrees celcius) which the rubber tip would normally be produced with the friction it provides. My question is should i steer clear of this pen or will it be safe to use for the exam? thanks