Ummm, I think that whole "gravity" thing is gonna put you right back in that danger zoneI find the Oregon brand saw very light and handy to use. Pole saws can be safer to use too. You are much farther away from the danger zone in case of kick back.
Just make sure you have a 1000 foot extension cord.Unless you're working out in the woods away from an outlet, a corded saw is more powerful and cheaper too. Like my 10 year old Remington https://remingtonpowertools.com/product/rm1025p-ranger/ since it can be detached from the pole and used by itself as a compact saw. Rarely used my full size model since getting it.
I wouldn't advise standing directly underneath a large limb. Best to section them starting away from the tree and working toward the trunk.Ummm, I think that whole "gravity" thing is gonna put you right back in that danger zone