Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: I am torn between using 21 ga headless pins and 23 ga which would dictate which gun I buy. Can anyone tell me if there are disadvantages of using 21ga
Document: I was not certain about spending so much for an air tool, being a homeowner and not a pro. I am convinced now! The Grex 23 ga headless pinner is an outstanding tool and is extremely useful. The feed is excellent; only one jam in thousands of pins. The Grex pins are excellent. The Grex pinner is much, much quieter than my other pinners.
The holes are so tiny that you will not be able to tell you shot it at all, much less twice.I have about 3K pins cycled through this gun now, and everything is still running like a sewing machine.
I bought this for my husband for Christmas and he loved it. He said it was the perfect size and was quite light and easy to use. I gave it 4 out of 5 stars because I thought it would have come with a small package of pins to use but it didn't. I don't remember seeing that when I read about the item. Other than that, it was a great buy!
The grex gun is hands down the best 32 gauge nail gun. I say this having owned others. The real beauty of this gun is that the holes that it leaves such tiny holes!When I install pre-finished stained crown the grex makes the corners look so good. I would highly recommend it to anyone. It has been the envy of every jobsite that I've used it.
Fit and finish way above the other manufacturers offerings. The gun has not mis-fired in 4 packs of 1 3/8" pins, and thats a lot of headless pins.I pin moldings and trim casings with no problems. This is not a 15 guage trim gun or a 2 1/2" framer but it does what it was made to do and does it very well.
Very hard to tell if the gun is firing or not. But minor concerns with such a Great Tool! It's very powerful judging at the strength of penetration into a wood (Ipe) that is very close to being the hardest of woods. 18 guage would shatter and split the wood and only my battery actuated Dewalt 16 guage gun would consistantly penetrate but only at a right angle and with occasional splitting.
The tiny, invisible pin holes need no filler at all, and the light, handy gun is easier on my arm and compressor. The holding power of the 23-gauge pins is surprising, far greater than I expected, especially if they are shot into solid wood. In oak or maple, you will likely break the pin entirely before you are able to pull it free of the wood.
I would recommend this to anyone before buying other brands. Spend the money it is worth it
Oh by the way this is my very first review ever submitted.Grex P635 23 Gauge 1-3/8-Inch Length Headless Pinner
This pinner meets if not exceed all comments and recommendations. I love it. Yes, I would recomend it to anyone.
Answer: yes