When climbing you want to keep the front end down. Letting out the limiters lowers ski pressure letting the front up come up easy. When you wheelie while climbing in deep snow you loose a lot of forward momentum and you wont climb as high.
For you, since your boondocking I would recommend moving the front skid shock to lowest postion and leave the limiter straps in stock position. Doing this will increase shock pressure so it wont collapse as much when you are on the sled, giving you less ski pressure.
Its not good to let out the limiters since it messes up the geometry for the suspension to work properly. It will also wear out ski tips on the rails and hyfax much faster.