I looked up your Makita Framer, and right away I see the secret to it's consistent high ratings. It's set at 21 degrees.
My life started as a hammer swinger from age 12, till, well I am still occasionally getting stuff built. Long ago, sometime in my early 20's my right elbow quit wanting to take hammer blows, so I moved to air tools. My first framer was a made in Cincinnati Ohio Senco, 21 degree, 3.5", full round head and it worked flawlessly for a lot of years. A few million fires would be a conservative estimate. Hardly ever misfired, and just plain worked, until some scab*^% PO u know what, stole it out of my trucks cab.
By then I had moved from framing full time, to finishing full time, so I didn't really need the framer, except in helping friends build. So when I did need to replace it I went HF cheap. They no longer have the one I bought, but it shared the 21, 3.5", FRH, as my Senco, and that thing surprised me, and it had about a million and a half fires, and then thinking I was done with needing one anymore I sold it to a friend, and it's still going strong, He or someone use it most nice weekends all through Spring, Summer, and Fall.
Which brings me to being wrong about being done, so I went back to HF, and got this model.
https://www.harborfreight.com/10-gauge-3-in-1-air-framing-nailer-98751.html
You'll note 21 degree, 3 1/4" is what they sell now, FRH. I can't say this one has fired more than 30,000 fires, but it doesn't jam EXCEPT at the last 2 nails of the second strip inserted, pretty consistent with that. Will it get to a million???? It still looks like the day I got it, and for the money, it just works.