I went through this last year in getting life insurance. I was just totally open and honest about all the "dangerous" activities that I do (motorcycles, climbing, etc.) because I don't want my wife to be denied benefits when I just croaked for something as stupid as climbing.
The agent guy took notes and had me sign some type of disclosure form. In the end, it took an extra day to get approved and the price difference was really minimal. I wondered if they even noticed the disclosure because the agent said I was going to get the ol' dry corncob when it came to pricing, but it really wasn't bad at all.
For me, it's worth the peace of mind knowing that my family won't have to deal w/ the hassle after I kick it.