Anyone run this combo to fill their tank?

Seeing if anyone is running this combo?
Scba tank, CGA 347 Adapter, paintball yoke? Any issues? Noticed some yokes are listed @ 3000psi, but rated 4500psi? I am guessing a steel yoke is better than aluminum?

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These adapters (Scuba blocks) were what I used when I got my 1st pcp's that only filled to 3,000psi & only had a SCUBA tank. When I went to higher pressure guns it was time for the the cga347 type adapter. When working with HP air and tanks, the less "hardware" between your air source & whatever it is you're filling THE BETTER! What's the logic of using one of those "ninja" type fill adapters when they're usually only rated to 3K psi & add more possibilities of something breaking down? They're designed for SCUBA tanks with a K valve, not for SCBA's. HP air requires us to do things with an awareness of SAFETY at all times! Please don't use one of those with your SCBA fill routine. It's not wise to do it.
 
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