I have a cheapo 16" Homelite Ranger chainsaw that was recently purchased on sale. It's been working fine for my purposes (I'm not exactly a lumberjack), but, I've been reading that a shorter bar might be better? I'm considering picking up a 14" bar, and the appropriate chain. They look interchangeable, but I wanted to ask here first to make sure I don't waste my money or break the saw. Is it as simple as buying the right size bar and a shorter chain?