That guide is a great starting point. Well written and accurate.
Also want to second discussing it with your doctors, because only they will know and understand your family medical history and risk factor set. In fact, any responsible doctor won't prescribe you T until you've discussed the risks involved and indicated that you understand.
My personal belief is that so long as you have no other existing conditions that cause a problem with T, you will face no additional risks beyond those that your brothers have. It means that you ARE likely to die earlier, because women have a longer life span than men do, but to me, that's not a reason not to take T. I am a guy. I should have a guy's life span, and no one would tell my brothers to walk around being bummed about their risk factors. What's important is the quality of life. Having a poor quality life isn't going to make me live longer, either!
That said: there is really only one high quality, statistically meaningful scientific study suggesting this theory. Even though there is no real evidence against it, I still fear the unknown. There is so much more research that hasn't been done on Hrt for FTMs, and that uncertainty creates a risk that you have to decide how you feel about.