Below is the email I had sent to the Tuna Man, after installing the GRT Trigger:
I just installed your GRT-III Trigger, that I only ordered a few days ago, into my New Gamo Whisper in under 8 minutes, fired the first shot, stood there in disbelief that this was the same Gamo Whisper I had purchased. I actually stood there for a minute and kept repeating out loud the first thing that came to mind..."WOW". I am so grateful for your expert craftsmanship, Thank You so much. I have many Springer & PCP's, Beeman, RWS, Airforce, Etc...This Gamo Whisper is the lowest cost springer/Air rifle I own, but with your GRT-III trigger installed, it performs like the Big Boys. How does anyone who owns the Gamo Whisper Shoot it without this trigger? and at such a reasonable price, Thanks Again. I can't thank You Enough. "WOW"
Matt
If anyone is still using the stock trigger, you have to upgrade to this Trigger, it brings the WOW into this Low Cost Rifle.