I've been considering a ⅜"lp nk B&C for my 2511 as a compromise between ¼" and ⅜"lp. The MS170 I got uses that chain, so I already have to deal with it at this point unless I go to a shorter ⅜"lp bar. Is the difference between them noticeable, or is it splitting hairs? The 170 handles the 16"...