I just picked up a good running early model Husky 61 with a white top. It came with a 16 inch bar and I would like to put a 20 inch bar on. Any recommendations on brand of bar? I see both Oregon and Husky brand at Lowes but wanted to get some feedback from the group before selecting one. Any feedback on these older 61 units? Are they worth upgrading the muffler and larger piston with?