I assume you're being sarcastic, but I mentioned this mostly to dismiss it. "Don't look at HR in a race" is one of those one-size-fits-all bits of advice. Apparently a lot of people let themselves get psyched out by seeing their HR. But with a little bit of knowledge, or just a cool head, it's not a big deal and it can give some rough information on how well you're doing at conserving energy. Currently my "Race" screen displays 10" power, HR, time, speed and distance. For me, having the performance data there doesn't hurt me and could conceivably help me, like if I want to pace a solo effort. Mostly I just ignore it. I'm sure it does help some people to put tape on their screen or whatever, but I'm not one of those people.