JG Bar 10 Airbrake Mod question

First of all, sorry if you'd prefer this in the "other" category, but I figured since they're the same thing it could go in here as well.

Anyways, I was curious if anyones had any actual experience with doing the mod, and what kind of effects, if any, it had on the gun be it in the long run or not, but specifically to the rest of the internals. Its shooting 430 out of the box, which I know isn't great, but it seems like a decent starting place for me for the time being at least, and i'd rather not shorten its life in stock form if i can avoid it.