We're pretty similar, I think. My tri-type is 7-4-8. Never been sure if I'm 7w6 or 7w8, but I've leaned toward 7w8. If I'm 7w6, I'm the 7w6cp type. So the question is 7w6cp or 7w8... I'm like both, at different times. I always need a project to work on, mental or physical - to feel like I'm climbing higher. Speaking of which, I love rock climbing. I love the combination of mental problem solving, physical challenge, and conquering the innate emotional fear of falling and injury. I've had some scary moments, but it wouldn't be as much fun otherwise.
I do other some other sports that people might call "extreme" but that's such a relative term. None of what I do seems "extreme" to me. These are just sports where you really have to know what you're doing to avoid serious injury. I'm pretty sure my energy around doing these sports comes from 7w8.
I don't like conflict and I don't like to pick fights, but I don't fear conflict, either. If a bad decision is about to be made, and something needs to be said, I'll say it with no reservations, and I'll take it as far as I need to, fuck the consequences. I do try to make amends after most conflicts, mainly for political reasons
I may not be the best person to advise you since I have the same confusion as you. But I'll still venture a guess and say that we're both core 7s with balanced wings. Maybe we both lean slightly towards 8, but not strongly so.
My wife knows the Enneagram system pretty well by now, and she says that I seem like 7w6 and 7w8 at different times... and also that she loves the 7w6 version of me, but that she kinda hates the 7w8 version. Anyone else have this experience?