you know what...hop ups are a bit of a crap shoot as they affect the gun in air seal (fps) as well as trajectory. Also...the hop up bit can also effect trajectory so I would try the G&P hop up and see what gives...lol
If you are getting other items shipped then sure...throw in a hop up bucking as well (they are cheap)
And when you were referring to "hop up" I am assuming you are meening hop up rubber.
Just my thoughts...
G&P makes good stuff so I wouln't be in a rush to change the actual hop up unit itself...