The mast balances nicely when lifted just below the spreaders. If you attempt to pick it with a lifting point 1-2 ft below the spreaders it will be significantly top heavy. You will need a couple of strong folks assisting, (one below deck and one above) to help guide and steady the mast as it comes out of the partners. The mast will want to lean side to side or front to back as you pick it up
Shortening by 1 ft, maybe, but unless you've done it a few times or have some experienced folks with you, I would not recommend going less than that .