I need to prune hedges that are 20 to 30 feet tall and then cut them into four foot lenghts so the county will pick them up. I have a Stihl 028 chainsaw that was never used but no manual. Is it reasonably safe to use this saw for cutting small diameter soft wood or is it likely to kickback and be hard to control. I used a small electic chainsaw once before so I'm pretty much a novice, but if it'll cut right through the small branches I shouldn't have a problem.