During the last hunting season, I learned that if I set the LWHC at the tree with the platform slightly up, by the time I'm at hunting hight, the platform has the perfect down angle to be comfortable for my feet without adjusting the belt during the climb. I have also found if the platform is leaning down too much, the belt might be, what I call "too long" and the platform could fold downwards... if that makes sense. There is a sweet spot, which I can't really measure in degrees, as I'm on the platform, in a tree.
However, in order to overcome the initial bigger diameter of the tree on the first 3 - 4 ft, I'm thinking about setting the platform above that spot and use an aider to get up to the platform. Once on the platform, I'll put the aider back in my pocket. No further need for it, other that using it as a rescue step in case the platform drops down and I have to shift load from the tether to the rappelling rope. Reach out if I need to clarify more...