On eBay there is a kit called the slt trigger kit it works in np2 and np elite guns and brings the pull down to around 2 lbs. It really improved my .22 valiant's trigger.
When the Benjamin Summit was released I ordered one from PA. Reading all the specs, figured it would be much better than my Crosman Nitro Venom Dusk (NVD). I was in fact more powerful, but not as accurate, as in you still had to do your part. Not wanting to change caliber, I stayed with .177. I figured the extra power would make up for the small caliber. I found out the hard way, .177 needs proper placement no matter the power produced. Luckily I learned quick. Although the Crosman NVD got me hooked on airguns, this is the one that sent me down the rabbit hole. Although I had pumpers before, a Crosman 2200 and a Daisy 880, I was never really into air power. Then moving onto .22 caliber and buying NP guns of various power levels the Benjamin Summit was left behind. A few years ago I had the idea of chopping the barrel and adding a "pickle". I used it on a few more pesting expeditions after that and sadly it's been locked away since. Going through the gun cabinet today I figured to send a few rounds down range and over the chrony. Wow, only making 9-10.5 fpe!!! Pulled out the tape measure, actual barrel is only 8.75". It was cut short so it wouldn't be so long with the "pickle" but didn't realise I lost so much power. It was a handy rifle and very effective with proper placement, but went from an estimated 17-18 fpe to an actual 9-10.5 fpe was kind of surprising given the things this gun has done. I still have various NP/NP2 guns, some needing more work than others, but all have severed their purpose. Although I prefer a German brand now, I think the NP2 is a solid platform to start with, and much less troublesome than the NP1's. The NPXL series has been good to, but I have the Remington VTR 725 and not the XL Trail.Here's my old pesting rig
Anytime, it is pretty easy to put in too.