I'm sure that if you've done some reading, that you know how important it is to determine what kind of ER you have. I would definitely let a cardiologist make that call.
Early repolarization is more the rule than the exception in young athletic men. It usually disappears before age 40.
There is a less benign variant, which involves a notched J-point in leads F, II and III. It may triple the risk of cardiac arrest without a cause.
What we need to remember, is that cardiac arrest without a cause is VERY rare. So a tripled risk really doesn't make much difference. The chance increases from about 1 to 30.000 to 1 to 10.000.
In other words, even if you had the less benign variant (which is rare) - the chance of actually dying from it would be about 10 times lower than the chance of getting murdered. In a safe country. So I really wouldn't worry. I have ER myself and I used to worry. Now I don't anymore.
Thanks for the reassuring numbers. I'm going to try to stop reading papers about it and just forget about it once and for all now.