I have a very strong bias on this subject, based on my own experience. The following is my own biased opinion, which I feel sure some of the eventers will disagree with, but here goes.
I think starting out in hunters is a *wonderful* background for eventing. (Yes, because all my early training was hunt seat, and I started eventing much later.) Riding hunters really develops your feel for pace and rhythm, and your sense of distances and where and how the horse wears its fences. (Hunter trips are judged on these things, XC and stadium in eventing are only judged on faults and time, so obviously, there's less emphasis.) That's a tremendous foundation to take to eventing. Yes, you do have to learn to ride from several different seats, and be much more flexible about your position, but that core focus on position, pace, rhythym and jumping form is a huge asset once you get "unstuck" from your hunter two point.
My default position is out of the tack in two or three point, and sitting or full seat when the situation calls for it. Most eventer's default position is full seat, and they only get out of the tack when the situation calls for it. Nothing wrong with either method, but my core belief is still that the more time spent off the horse's back the better.
Back when I was attending a lot of clinics, there were usually a couple of hunter riders in the Novice sections, and usually the clinicians *loved* them, for a lot of the reasons above. They tended to be quieter and sublter with their aids (again, they're used to being judged on that) and more conscious of position and releasing over the fence. Yes, they did have to work on getting "unstuck" and learn to ride a full, following seat at a hand gallop, but once that's there, you're golden.
Good luck, have lots of fun and post frequent updates.