Air Venturi Newbie question 2: Avenge-X High/Low in .177

I searched and didn't see much here but it may be my search skill. I have seen a few posts that suggest the Avenge-X is designed more around .22 and .25 so is pretty hot in .177. My reg is at about 1800 psi and it is still shooting at about 950 to 960 fps with 10.3 to 10.5 grain pellets. The SDs are 2-3 fps. The seem to usually fly well, but "catch" air like a curve ball on occasion.

There are 2-3 folks who have posted they thought the .177 version of the Avenge-X was better suited to being tuned at on the low setting. This runs about 825 to 830 fps. It too has about a 2 fps SD. It doesn't show the "catch" air phenomenon.

Not fully understanding the high/low transfer port operation means I am not sure what the trade off is in such cases. If all seems well when running it there does it create an inefficiency in some way I don't understand?

Sorry for the newbie question.
 
Last edited:
  • Like
Reactions: Way2fast