I do not do a lot of work but when me and a friend built my deck he had a DeWalt one and I just tripped out in the speed and no swinging of a hammer. I have some rotator cuff issues do I am going to break down and get one I chose 30° due to tighter areas. The 2 areas of concern are clipped head nails and needing it rebuilt due to its nitrogen cylinder. Milwaukee says it can handle full round head or clipped head. I have yet to find a post that says it will shoot full round head. Will it shoot the full round head like the manufacturer states? Please explain the required nitrogen cylinder rebuild that is needed and at what interval? HD seems to have a decent price on it is there a better place or time of year to purchase one and I heard mention of coupons where are they found. I want to thank everyone in advance for their help.