I use the same ol JSB (or FX 18.13) 18.13 pellets that many guns like. Work great.
Yeah, don't be fussing with it, just shoot it.
The trigger in mine was great from the factory, no adjustments required. The "takeup" on mine is just over 1/8". No need for adjustments. Yes, it IS a bit loud..! As much as I really hated to make the gun longer, I put a short, 0DB silencer on mine. Made quick work of the sound. And agree with the above, the cheek area of the gun sucks. You have to fight to find a comfortable cheek weld. I haven't done anything to mine in that area, though I've thought about a coupla layers of leather. I keep changing the sighting system on mine. Maybe the cheek position thing, I can't get comfortable. I just put a Steiner T332 sight on mine. So far, liking it. Also agree, the butt stock sucks big time. Too short for me, and as has been said, no grip.
One BIG thing that I found...the grip, it's AR-15 based. The steep angle that it puts your wrist at is uncomfortable. I tried a 15° angle and a 0° (vertical from the barrel) grip. I like the 15° grip better. See the ERGO brand of grips. MUCH more comfortable than the AR grip.
Just shoot it, have fun.
Mike