Don't fix what ain't broken save the cash for when something does.
If you want to do the new hop up do the research and when you get the hop up do the extra work to make your gun shoot like a champ since you will have it apart anyway
http://shop.ehobbyasia.com/upgrade-p...g-gearbox.html
This is to replace the original hop up cushion .
This is a easy thing to install when you got the gun apart. All you need is a bit of time patience a scalpel sharp knife, a dab of super glue and you can have a super accurate gun.