Unless the added price is an issue, get the full tune ... much better to just get it and start testing pellets than to have to mess with it ... unless one really enjoys tinkering with them ...
I have to second what lillysdad621 just said about the 753 and 853's. You can beat a refurbished CMP 853 for $120. They have excellent accuracy and they have single stroke pneumatic powerplants. The trigger could be better. But can be made better or you, not very difficult, or you may luck out and find a rifle that has had the trigger tweaked. I wish there was an adult stock or aftermarket option available.Taso
But will it take small game like the xs12 within 20 yards w a headshot?